go ham · verb1
Uncertain; the earliest use of the term in the idiomatic sense appears to be in the 2007 song "Go Ham on 'Em" by Soulja Boy (see quotation below), although isolated usage goes back earlier. "Ham" is often thought to be an acronym of "hard as a motherfucker" (with go ham then parsing as go hard as a motherfucker), although this may be a backronym. Alternatively, it could be a phonetic clipping of mayhem. The term was popularized by the 2011 song "H.A.M." by Jay-Z and Kanye West. The fact that go the whole hog and go ham have senses that are synonymous at least raises the question of whether the pig-portions connection is wholly coincidental or not.
go HAM · verb2
Etymology from Wiktionary, CC BY-SA 4.0.