A sex act whereby you prolong ejaculation for as long as possible. Then, when you can hold it no more, you ejaculate on your partner's stomach and draw, with the copious amounts of semen, a mojo jojo, the villain from the Powerpuff Girls.
Him1: So my gf and I haven't had sex in a week.
Him2: That sucks, how about you give her a blue's Mojo
Him1: Yeah, I have enough supply to.