Breast Size Prompts That Don't Work (Part 2) — Slang, Metaphors, and Syntax Analysis

Conclusion

• Metaphors generate unintended objects — hanging bombs produces explosives in the background, watermelon-sized produces watermelons, melon produces melons. None contribute to breast size.
• Japanese romaji (oppai) and dairy cow expressions (holstein) have no effect — holstein produces a Holstein cow in every pattern.
• super/strong prefixes alone have no size-increasing effect — The full stack’s effectiveness comes from the total volume of size-related tokens.
• Replacing tits/boobs with breasts doesn’t prevent nipple exposure — N=13, all had nipple exposure.
• busty, buxom, breast expansion are limited — around large level — No significant size increase compared to confirmed effective descriptions (huge, massive, enormous, oversized).

This is the detailed article (Part 2) for Comprehensive Breast Size Prompt Comparison. It covers slang, metaphors, and syntax analysis approaches.

• Part 1 (cup sizes, cm measurements, weight syntax): here
• Effective descriptions: see this article

Experiment conditions and base prompt: see the summary article.

Metaphors and Slang

hanging bombs — Explosives appear in the background

titty monster — Breast size comparable to control

watermelon-sized breasts — Image becomes someone holding a watermelon

gigantic jugs — Stays around large level

heavy breasts — Control level

big tits — Around large level

melon breasts — A melon appears

bigger than head breasts — Control level

Metaphors fail to produce the intended effect. bombs generates actual explosives; watermelon-sized produces a watermelon; melon produces a melon. big tits and heavy breasts stay around large level.

Japanese Romaji and Dairy Cow Expressions

oppai

holstein breasts — Holstein cows appear in the background

holstein (standalone) — Only a cow appears

holstein massive tits — Cow appears, no breast size effect

cow udders — Cow udders appear literally

oppai produces control-level results. All holstein patterns generated a Holstein cow in the background with no effect on breast size. cow udders was similarly interpreted literally. No breast size increase from oppai or animal metaphors was observed.

Individual Effect of super / strong Prefixes

Testing each component of super strong super huge gigantic breasts separately.

strong breasts

super strong breasts

strong huge breasts

super strong huge breasts

super gigantic breasts

strong alone is control level; super strong is also control level (with some seeds splitting into two people). strong huge and super strong huge show the huge effect, but no additive boost from strong/super strong. strong and super themselves have no size-increasing effect. super strong super huge gigantic breasts was large because of the total volume of size-related tokens (huge, gigantic), not because of any special power in the super strong super prefix (see size token volume hypothesis in the effective article for details).

tits/boobs → breasts Unification Test

The hypothesis: “Since tits and boobs are strongly associated with nude content, replacing them with breasts might prevent nipple rendering.”

3-seed comparison

10 independent random seeds

N=13 (3+10) — all had nipple exposure. Replacing tits/boobs with breasts does not prevent nipple exposure.

Other Limited-Effect Descriptions

busty — Around large (1-B) level

buxom — Around large (1-B) level

sagging nipples — Around large level. Shape descriptor, not a size booster

breast expansion — Around large level. Limited effect on realistic models

busty and buxom mean “large-breasted” but stay at large level. sagging nipples and breast expansion are also around large level — underwhelming.

Summary

Slang and metaphors only cause unintended objects to appear — they don’t contribute to breast size increases.

Back to summary | Effective descriptions | Part 1: Cup sizes, cm measurements, weight syntax

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Breast Size Prompts That Don't Work (Part 1) — Cup Sizes, cm Measurements, Weight Syntax