Anyone who is in the water in a known surf spot, who is not surfing. Rather they may be standing, splashing, wrestling, throwing a football, being pale white, wearing a t-shirt, floating, oblivious to the vessel headed towards them, in the way.
In the summer time tourist season you might say: "F#@kin bouys, messin up my wave, looking scared shitless when we lock eyes right before I interupt there splish splash session. Yet, they still don't leave".
A sex change for a fat lass
How does a fat lass get a sex change? Chuck her in a pool and she becomes a bouy!
1) An extraordinary mess. Something incapable of ever being useful.
2) A person who is useless and incapable of being taught.
"I completely bouyed that project."
"That bouy is thicker than pig-shit"