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1.
Means: Hot Humid Hazy Hell

to tell the way it feels in the room
Jeremy: It's the 4 H's in here
by Speckdahl18 January 18, 2011
 
2.
4Hs
The 4Hs are HIV, HPV, hepatitis, and herpes.
Damn, that girl is bangin, but do you think she has any of the 4Hs?
by QueenOfTheHs December 19, 2013