Simon: hey, come on kris, get your crap together and lets go
Kris: where's my beret, ffs, where's my keys
Beenie: Kris come on, we are going to be late man,
Simon: God come on Badmin
Beenie: yea, come on Badmin
Kris: FFS this is bollocks...
simple really, it's someone who keeps an eye out for his friends/mates/buddies etc on a night out down town
12 lads go out down town, while one lad will be choosen to stay sober, his job, is to keep an eye on things and notice anything that could go wrong, to either tell the group to leave and go to the next bar or stop it before it happens.
Don't worry, everyone has there turn, plus side, who ever is on shark watch gets his cokes free all night :-)