Probably Frank Lero's... uhm.. Iero's favourite word. Often used on Twitter.
Means bike in german.
*somebody makes a cool drawing and tweets it*
Frank replies: Rad
A synonym to awesome, cool, or swag
Usually used to express agreement to someone else's actions
"Rad." -Frank Iero
Rad is a shortend word for radioactive andradicle.
Guy - go away, it is very rad in here!
Guy - dude! Your boots are rad!
my dad is radder then yours i can teach you but i have to charge
Something your grandfather said
Grandfather: Damn girl you look rad.
Gandmother: Marry me!
Rad is a coo, guy that likes to do cool things. Not much to say about him.
Both a dumb 80's slang word for radical and also a terrible BMX movie also from the 80's.
Nick: Bro that dude just did a 360 flip off the quater pipe into the seafoam!
Beans: bro that was gnarly and RAD!