Mike Trainor (born February 6, 1981) is an American stand-up comedian and writer.

[1] Currently, Trainor is a writer, producer, and on-air performer for The Howard Stern Show, and has several recurring characters on the show including Jeff the Drunk's "Lump", Bobo's "Toupee", the Hulk, and others.

[2] He began performing stand-up comedy in the summer of 2003 after graduating from Elon University.

From 2004 to 2006 he was the co-host and producer of the show "Four Quotas" on Sirius Satellite Radio alongside Steve Hofstetter.

He also provided humorous [disputed – discuss] commentary on the show TruTV Presents: World's Dumbest....