A feeling you get when someone has called your bluff.
When you feel ill and sick to your stomach because you are the cause of a hurtful situation. You try to deny it to yourself but that feeling won't let you.
So, you go shopping with your friend, then go home and talk shit about them to your mate. Then your mate repeats what happened shopping, word for word to another friend and that friend then goes back and tells. BUSTED!! You should have a guilty conscience!
A usually secretive, sick and twisted activity/hobby that someone does, that KNOWS they shouldn't and feel downright ashamed for. Sadly, we all have them, including me.
Myself: *sighs* I like listening to Lady GaGa's "Bad Romance". Considering that I usually condemn mainstream music and I usually listen nothing but The Beatles, Led Zeppelin, Kansas, and other kickass bands, this is indeed a PRIME example of a guilty pleasure. -_-U
Using the toilet at a private residence during a party, function or gathering in which the smell will induce guilt and/or remorse in the creator out of fear that other guests may notice.
We rushed out of the house so quickly I didn't have time to use the restroom. I guess I'll just have to drop a guilty turd when we get the Gleeson's dinner party.