roulette noun
rou·​lette | \ rü-ˈlet
\
Definition of roulette

(Entry 1 of 2)
1a : a gambling game in which players bet on which compartment of a revolving wheel a small ball will come to rest in
b : something involving a high degree of chance and unpredictability
2a : any of various toothed wheels or disks (as for producing rows of dots on engraved plates or for making short consecutive incisions in paper to facilitate subsequent division)
b : tiny slits between rows of stamps in a sheet that are made by a roulette and serve as an aid in separation — compare perforation

I feel like this is a troll thread.