1. A glow stick or other brightly flashing stick-like object used commonly in nightclubs and crack houses for entertaining people high on drugs.
2. An erection caused by a combination of drugs and dance music. Usually leads to "booty calls" and "picking up trade."
Jeremy loved sitting in the corner away from the others while watching Billy twirl his disco sticks.
David's friends decided to perform an intervention when, after his last afterhours party, everyone on Manhunt was buzzing about his fierce music and even fiercer disco stick...
The act of breaking a glow stick open, and putting the liquid on a man's dick; (usually followed by a woman having sex with the man). Lady Gaga was one of the first people to use this term.
When a girl puts glitter inside her vagina, and then queefs, giving a magical explosion of glitter. After doing this, she has sex and the guy will have glitter on his dick, thus a disco stick.
"Man, last night my girlfriend queefed and glitter went everywhere! We did it, and then I had a disco stick"