A common word to refer to semen, or cum. Usually used in a phrase such as 'blow my wad' or 'shoot my wad' to infer that a person is going to ejaculate, to cum.
Common word, most often used by the more younger generation, such as college freshman or jocks, usually said in, or on the way to a party setting or in relating to their exploits from the previous night.
Often used in phrases, rather than on its own.
Also interchangeable with 'load' as in shooting one's wad, can be shooting one's load.
It can refer to achieving orgasm, though not necessarily, merely that a person was able to cum.