1)to get extremely drunk
2)someone being sloppy
"damn were gonna get so wallaced tonight"
"did you see that girl the other night? she was super wallaced all over me"
To be a total wallace. To be slovenly and drunk. People commonly wallace when they admit that they are neither a "demon toke-head" nor a "raging alcoholic". To wallace is to be so badly drunk that it is hard to move, and one ends up in unknown places.
"Man, I got soooo Wallaced on Monday"
"Dude, stop wallacing"