(1)A 2-stroke or 4-stroke motor in a fiberglass hull used for recreational use or racing on bodies of water.
(2)The size of a mans penis when its fully erect.
(3)also known as personal watercraft.
Jack and his jetski were chillin at 5%. The next thing you know, hes fucking a fat chick. The next thing you see, hes getting his duck sicked. The next thing you hear, that last one was an indian girl. The last thing you were told, the chances of him being mayor, they definitely now have grown. The last thing you see, is him riding off on his jetski.
A good friend or close buddy. Someone you see on a regular basis that you enjoy the company of.
Guy 1: Waddup jetski?
Guy 2: Not much, just watching TV.