Saleet is essentially an all encompassing word which can be used in a plethora of situations. Basically, it means anything and everything at anytime, anywhere. It is THE omniscient word.
often used in replacement of words like legit, beast, raw etc.
note: if asked what saleet means, simply reply "what isn't it?"
dude one: bro did u see that quicksope?
dude two: yeah bro, that shit was saleet!
lab partner: yo, we got an A on the lab!
you: yes! thats so saleet!