look up any word, like cleveland steamer:
 
1.
A derogatory term for a womans labia (those flappy bits down there)
"Don't kick me in the meat-harps!"
by James C June 11, 2003
 
2.
any instrument played by a wanker
"that cat sounded like he was blowing a meat harp"
by John Worley May 28, 2008