When something is wrong, but your lack of English skills can't find the correct word.
"So what's up with your AE86?"
"Something is not yes."
The expression you would use when answering positively to any question asked by a Portuguese.
Portuguese person: Hey man want some bacalhau?
You: Yes Portugal
when you use the word yes "twice"
Coal: Do you want to go to the movies?
Christian: Yes
Coal: Are you sure?
Christian: Yes^2
Used by fire buff's defined when exclaiming there joy.
YES BOH! YOU ROCK AND GO HARD BOH!
When something isn't really funny and you make fun of the person who made the joke
Josh: *unfunny joke*
Carl: Haha yes
Josh : Fuck you
It means a yesssss boyyyyyyyyy
Is pewdieie your favorite youtuber yes yatch