To Gwob is to yank your flaccid penis identically to when you start a lawnmower in the hopes of growth or lengthening.
M: Dude i was up late last night gwobbing, i cant get hard right now it kind of just flops around.
R:what
A man known for the act of "Gwobbing" Which is when you pull on your flaccid penis identical to when you start up a lawnmower, in the hopes of growth or lengthening
C: you're such a gwobber
E:I dont know what that means
C:Its a man who gwobs
E:what?