1 definition by Silas Flannery

Top Definition
Term used by those in the gay community to describe a, supposed, heterosexual man's erection provoked by homo-erotic thoughts, situations or other stimuli.
"He says he's as straight as a die but his hemi showed through his pants a mile away."
by Silas Flannery December 03, 2007

Mug icon
Buy a Hemi mug!