look up any word, like dirty sanchez:
 
1.
To chill out, to not act a fool. Using whatever means necessary to avoid drama, confrontations.
"Dude, that guy's mad-dogging me!"
"Be cool, man. He's strapped."
by Malibu September 13, 2006
 
2.
people who are not cool but wanna be;
people who try way too hard to act cool;
unoriginal/fake people
hey that kid always tries to act cool to mix up with the guys, he's a fucking be cool.

look at those be cools.
by pwords May 05, 2009