To receive fellatio and the fellating party puts both one's cock and balls in their mouth
The B was full blown last night. That girl's mouth must have been huge to fit his mammoth sized balls in there at the same time as his monsterous man-rod.
ayon kay Big Unca Mike ika-04 ng Setyembre, 2008
1 more definition
A term used to describe a very manly lesbian, or extremely feminine fag.
That's a fullblown diesel driving that 18-wheeler. Nice mullet!
ayon kay Krysten ika-16 ng Abril, 2004