A chick that you want to have sex with, and that's about it. Some men will go to the extent of having the girl be their girlfriend. But after they have sex, the man leaves them for another woman to hump and dump.
Robby: I want to hump and dump this one chick.
Isaiah: She's a bitch.
Robby: Oh never mind.
When you have so much pent up sexual tension from lack of training the purple-headed warrior that you go kablam and sex up a hapless stuffed animal and/or glove.
When Jimmy'sEaster celebration was over, he totally humped the shizzle out of Peter Cottontail.
A day for a good old fashioned dry hump. Lie on top of someone, anyone will do, and rub against them suggestively. Moan a lot. Make promises you don't mean. Lie. Do this in your office or in an elevator. What the hell. Then go and change your underwear.
I did the hump on hump day.
I humped old Humphrey on hump day.
Mike humped Louise about 30 years ago and always regretted it.