What is Insta Flop?
1.
The sensation of your erection instantly dropping when you see a particularly ugly female species. Can be used with the phrase
I saw Helga earlier after getting with Amy, she wasn't wearing underwear. BOOM, insta flop!
See
Random Words:
1.
To search random words on Urban Dictionary untill you find one that isn't defined, then define it.
Dude 1: Hey, you urba-trawl ed ..