flat on your face (as in falling fiercely)
While running from the cops, the man tripped on a curb and fell agroof, knocking him unconcious.
by cocobunny November 04, 2007
1 more definition
A large group of buff black men who can't spell
oh thats agroof; Terry Cruz and that Old Spice guy are there.
by Fumyracist November 23, 2010