We found one dictionary that defines the word stick up one's butt:

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1. stick up one's butt: Wiktionary

Definitions from Wiktionary (stick up one's butt) ▸ noun:  Synonym of stick up one's ass ▸ Words similar to stick up one's butt ▸ Usage examples for stick up one's butt ▸ Idioms related to stick up one's butt ▸ Wikipedia articles (New!) ▸ Words that often appear near stick up one's butt ▸ Rhymes of stick up one's butt ▸ Invented words related to stick up one's butt