Top definition
A fake. Someone who pretends to be someone that he isn't. He will say anything and everything to achieve his goals.
However, bais boys are devilishly handsome, and amazing in bed. They have an affinity to danger, and enjoy lighting things on fire. They also tend to drink a lot, yet they are fabulous drunks. Like literally the f&ckin best. Parties with a bais boy are ones you never remember, but can never forget.
"I told my parents im going to the library. Lets get wasted!"
"Dude, your such a bais boy."

"Hi i'm from Senters."
"Nope. Your a bais boy."
by hairluver March 05, 2014
Get the mug
Get a Bais boy mug for your mom Yasemin.