A very informal way of calling someone stupid. Can be used as a plural word but you just add a s at the end.
Look at that lup.
Look at all those lups.
A murderer that leaves very obvious clues around a scene.
Looks like we got a skoofer going around.
A blonde mf thats constantly annoying everyone and tries to be as gay as possible, use only when necessary
"Bro stop hitting me with your damn bag, Gunthor"