1. n. semen; come. (Usually objectionable. See other related senses at come.) I would never say “cum” to a doctor or nurse!
2. in. to experience orgasm; to ejaculate. I think I’m going to cum!
3. and cume (kjum) n. a cumulative average, such as a grade-point average. My cume is not high enough to get into law school.
See also: cum