Top Definition
Like a hard on, it comes about when some thing is arousing, but not enough to induce a full erection.
While watching two average women make out, Jim noticed that he was sporting a half on.
dari Harry T Selasa, 14 Agustus 2007
A semi-erect penis. (See: Semi, Chub) Fifty percent of a Hard-On. A "bulge in the pants," as it were.
I often get a half-on while leering at females on the subway.
dari Time4SumAksion Selasa, 06 September 2005
When a mans dick gets bigger but not hard enough yet to not be bendable either with starting to get a boner or starting to go down.
Damn that guy has a huge dick

Nah he just has a half-on
dari Its_Fucking_T0m Selasa, 14 Juni 2011

Email Harian Gratis

Tulis alamat email lo dibawah sini untuk bisa mendapatkan Kata Urban Hari Ini, gratis setiap pagi!

Email dikirim dari Kita nggak bakalan nge-spam kamu kok :).