instaguilt 

The feeling you get instantly after ejaculation when you have had sex with someone you shouldn't have. The pure natural and unstoppable instinct of emptying your sack took over all rational thought then instantly returns the split second you orgasm

similar to instaregret

Dave: - "mate i was hanging out the back of this well fit bird last night coz the missis was away with mates... but fuck me i got instaguilt the moment i blew my load"

Tony:- "lol, i know what you mean... its like the worst feeling ever"

instaguilt by mordzy2 October 19, 2010

instabilts 

Unstable stilts not to be consfused with the commercial-sounding "insta-builts"...whatever those are..

Ahhhhh I'm not walking on those... they're instabilts!

I saw this clown at the zoo yesterday, he fell so hard he musta been wearin instabilts.

instabilts by Lydiaaa June 13, 2008