One who butts in to other peoples conversations, or tasks. Partaking in another persons task, or life goal. Stealing.

Jessica was completing the closing tasks at work when her co-worker came over and started completing the tasks for her. Jessica turned to him and said:

"Hey! Quit being an IN BUTT-ER!"


by Quiz Ones April 25, 2009
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XD: woah it’s butt(er) cup
that’s the meaning of butt er cup
by buttercupHELP November 24, 2021
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When you hire a prostitute to stick a frozen stick of butter up their as in order to warm it, making it spreadable and or liquified.
Hey guys, I'm hiring a couple Butt-er Warmers for our lobster dinner tonight. When will you be here?
by DERDZ December 31, 2021
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