Is when a woman with a shallow throat performs oral sex
Yeah dude I got half dome from this chick with a small mouth.
by Setucker August 13, 2017
Is when a chick gives you head and some one calls or interups her resulting in blue balls
Tim had to be a cock blocker so abby didn't finish what she started she busted a half dome
by Kaaaaaaack June 26, 2009
The big, rock hard dick of a mountain attracted to the sun.
Gee the mountain in yosemite really couldn't keep that half dome in its pocket.
by Siberiansub June 13, 2011
To “half-dome” is to engage a person of the opposite sex in rigorous activity for an extended period of time thus rendering their legs inoperable and your own appendages exceptionally sore. Normally, this takes around thirteen hours to complete.
I'd half-dome your mom if I had thirteen hours to waste.
by I-got-Domed June 27, 2011
A phenomenon that occurs at UCMerced that describes the rampant sex and cheating that goes on at the Half Dome building on campus.
Damn bro my girl and I broke up and she lives in half dome.

Damn, you know she’s up to some half dome activities.
by William Bakespeared April 1, 2022