glowball
A sexual performance that includes a black light, some highligthers, and any sexual acts that result in the explosion of semen onto the ballsack which then glows due to the blacklight.
That slut Sharon is a wild one; she glowballed Drew all night long. Now his balls will never stop glowing.
glowballing
to give someone a blowjob under a blacklight so that when they cum all over their balls they glow
just got a blacklight. can't wait to go glowballing this weekend.