Greeting shouted at someone spotted wearing Lucy and Yak brand clothing, usually dungarees. The greeting should also be said along with hands making horns on either side of your head.
Yak!
Jack said he was meeting up with loads of yubo girls. Turns out he was just chatting yak.
Someone who is say something that is false and untrue
Jack said he was talking to lots of yubo girls when in fact he was chatting yak
When someone is roasting/tesing/ making fun of someone
“Im not tryna be yakked up by someone who hasn’t even had their first kiss yet”
You have had too much to drink so you walk by someones door who you don't like, open the door, yak (puke), then run.
Me: "Dude, I gave Dixon a Yak Attack last night. ROCKED HIS WORLD."
Premium spring water from the mountains in Nepal.
Wow! Can I drink some of those yak-tears?
Similar to a rusty trombone except one, both or all of the participants vomit which is then eaten by the other participants and used as lubricant for more rusty tromboning
Randy: Dude did you go home with that elderly couple last night?
Chet: Yeah, I went back to their house, things got pretty heavy we ended up finishing the night with a round of Rusty Yaks.
Or
Randy: dude you and Sarah were pretty loud last night in your tent.
Chet: yeah, Sarah was giving me a rusty trombone but on day 5 of camping things were pretty rank back there and she yakked, so we made the best of a bad sitch and turned in into a Rusty Yak.