To be french toasted is when you put egg whites, maple syrup and cinnamon in someones ass crack and have anal sex with them slapping them with bread.
"So the other night after getting my haircut I went home and got french toasted!"
A level of drunkness originating from The 40 Forty Year Old Virgin "Fuckin French Toast" - Drunk chick that bokes on Andy.
"Dude Gia, you're so frenchtoasted right now"
"Hehehe, Fuckin French toast!!! I want some now."
A bachelor party / stag party prank. When the groom passes out in the sun, eggs and bread are applied to his naked body. The sun cooks the eggs, baking the bread and ruining the groom.
Morgs and 14 of his mates went to Kaiikooora for his stag party. We dressed him in only a g string and made him drink fish bait with warm beer. When he passed out in the sun we french toasted him!