Wiktionary
big h
n. (context slang English) A street name for the drug heroin.
WordNet
big H
n. street names for heroin [syn: hell dust, nose drops, smack, thunder]
Wikipedia
Big H (rapper)
Adrian Harris, better known by his stage names Big H and Big Hooligan, is an English grime hip-hop artist from London. He has a distinctive flow.
Usage examples of "big h".
Yonder wall that looks like a mountain to you is nothing but one side of a big hole in the ground.