A 'Gilroy' is a party game or an acronym for for a group-gangbang. For a good gilroy, you need the following items:
- at least 3 women
- at least 9 men
- bottles of Whiskey or other alcoholic drinks
- a room
- a guy with a camcorder (optional)
It's a sex (gangbang) game. For a gilroy, you need at least three women and nine men who wants to make love. Every man who cums needs to get a ten minutes (or longer) break and drink some whiskey. After the drink he has to change the woman. Usually, a gilroy has no time limits. The last man standing has won the match.