look up any word, like bootylicious:
2. iyb
improve your brain; used when someone says something stupid
Agata: "I saw this in a dream"
Liam: "Your Psychotic?"
Janik: "you mean Psychic..iyb..."
1. iyb
in your butt
my husband keeps leaving my notes that end with iyb after his name
rss and gcal