To receive a blowjob from the person sitting next to you in a diner booth. Especially risky because of waiters, other customers, hot coffee, etc. but much more rewarding than road head.
"Lawrence, you're not eating anything so give me diner head!"

"Go go diner head!"

"Abe Lincoln, isn't it about time you gave me some diner head?"
by casino100 July 31, 2009
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