A large, hard and erect penis. Also known as: erection, boner, pitched tent, stiffy, chubby, hard on, wang, purple-headed yogurt-slinger, baby batter blaster, cock, schlong, one-eyed trouser snake, love pump, blue veined junket pump
The stripper was grinding on my fat butter until I painted her back white. The largest fat butter recorded was 14 inches (according to the book, "Everything You Always Wanted to Know About Sex").
by bearesq January 3, 2012
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When the first girl you meet at a party is butters, fat and precedes to stalk you the entire night, cock-blocking you.

BFG - Butters Fat Girl
The BFG I met last night was fucking sticking to me like a clam, it took getting off with 3 girls to get her away.

BFG - Butters Fat Girl
by The Sandman 12 November 15, 2009
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