to toke a pipe with all your might. to reef. reefin.
my friend timmy's always down to reef it up.
by Leya Fish January 19, 2003
the crease between a fatty/ass and the leg, in shapely but soft booty women.
the infragluteal crease

from Reef Brazil sandal models.
I was walkin' down the street when I saw this girl in a microskirt with her cheeks hanging out. I followed her watchin' as she made reefs with every step.
#ass #buttocks #butt #fatty #butt cheeks #cheeks #cheeky
by Rod X February 14, 2014
to disagree with another person
"yo you really is ugly though" ME: "reef nigga i aint ugly"
#reef #yeah right #disagree #never #nope
by Meloman603 August 20, 2011
Sickest cunt out
Reef is a sick cunt
#banana #sickcunt #reef #mad #hectic
by Fbshy June 17, 2015
A penis fart
When theo was giving eric head, eric ripped a reef in his mouth
#reef #queef #blart #fart #shart
by shartman101 June 17, 2010
To have a sneaky stroke of.....

Walk past her and reef her ass
#sneaky #ass #touch #feel #rub
by csiguy January 23, 2007
Reef- to increase (elevate/raise/set new standards for) tempo, volume, tension or general badassness of any endevor undertaken by the Concord Blue Devils Drumline.
Yo dudes....2011....#15..... REEF IT
#blue #devils #reef #it #scott #johnson
by cheeseinvert August 24, 2010
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