Top Definition
What you call a guy named Bill, implying he is a dildo.

See also Phildo
Bill: Hey guys, whats up? Can I hang out with you guys?
Bob: Go away Billdo!

by Sarah Lambert March 06, 2008
A slang name for a Kinky well endowed man named Bill.
I dunno man he's kinda freaky, Like Billdo
by FoxJ May 02, 2008
A man's dildo.
Jeff: What are you doing tonight Matt?
Matt: Testing out my new billdo!
by MorgasaurusTREX July 19, 2016
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