euf
When you or someone else does something stupid, and all you can say is euf. Similar to oof however you do it as a reaction to something, not a noise in response to physical pain.
"Mari was too lazy to hang this weekend."
"Euf."
"Euf."
euf
when you see a clapped girl in the street
bro: look at that girl omd
me: eufffff
me: eufffff