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1.
Another way of saying something or someone is "hardcore". In reference to the candy bar, which has a hard candy core.
"Dude, we went to that Rammstein concert last night, and that shit was Heath Bar."
by mackattack6977 May 22, 2011
 
2.
When a guy shoves his fingers up his cornhole, so that he has a large amount of dookey or shit smeared on his hand. He then masturbates furiously, so that the his penis is smeared with shit, looking similar to a heath bar. He then gets his girlfriend/boyfriend to give him a blow job, tasting like a delicious choclate bar.
Dude, Chris completely showed her who was boss, and gave her a heath bar. That's what I'm talking about!
by Jake big poppa heck of man April 05, 2006