A word used to describe a liberal, used interchangeably with libtard and shitlib. Used when describing those who support the democratic party without question.

when you're hungover as shit after a spending a night drunk as a skunk

A word denoting a typical liberal, likely to support the Democratic party without question and soften the edge of any leftist movement that threatens the establishment. Derives from the desire for the American parties (Democrats in particular) to be 'Big Tent'.
Tentheads often try to disarm any sort of radical movement in the name of 'keeping peace' and then go on to cry about needing the kind of change those radical movements would have brought.

Also synonymous with 'Shitlib' and 'Libtard' (though Tenthead is more often used in leftist circles.)

Oral sex performed on a man while camping (in a tent).