A crystal meth hunter is a gay man who, though not necessarily a drug user himself, seeks out meth-addicted men within the gay community for sex, for the reason that meth addicted men will go much further, sexually, than anyone not addicted to meth.

A portmanteau of carpe diem, a Latin phrase that means “Seize the Day!” and DM, which stands for Direct Messages. This word means seizing the day via DMs.