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1.
a person who joins a circle after a conversation has begun, and although the topic in point is irrelevant to them, yet they will annoyingly try to contribute and make themselves look like an idiot.
Henry buttleeched the conversation about Call of Duty, having been a barbie man all his life.
by murderedtoastie October 12, 2011
 
2.
Person who continues to brown nose/kiss ass even above the extreme to where everyone sees it. Usually a work situation or a guy kissing the never to give it up girl.
Dean was such a butt leech in the meeting yesterday.
by Taterhead January 28, 2007