To express approval or excitement
Do you guys wanna go to the Rundle Summit Pub tonight?
Butter!!!!
When a person or thing is ugly and/or unattractive. Can be a person Whois undatable mostly referring to virgins
"What about jake"
"NO he's butters"
Landing a plane very smoothly, this term originated from famous aviation youtuber Swiss001
Oh damn that dude did some hella great butter in X-plane,
It's a word used to describe your family member (brother)
I went yesterday with my butter to buy ice cream .