Strooping usually occurs when a group of friends go out for a drink.
The unfortunate person whom leaves there glass unatended gets a penis dipped in it.
stroopers are local to wick (scotland)
and can some times be wose than spiking of a drink
person 1: hey im going to the lavatory safe guard my drink
person 2: ignores
strooper: sticks penis in drink*
person 1: thanks for looking after my drink dude
Drinks strooped drink*
there fore the action of Strooping