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!"
"Hey! Quit being an IN BUTT-ER!"
by Quiz Ones April 25, 2009