When you are on a meanski it means that you are so messed up on a drugs, alcohol or just random energy that you do hella
obnoxious or retarded shit.
The person often has no idea what they are doing.
The "meanski" portion of this phrase refers to the actual "trip" or state of being that
the person is in.
It is often you used by people who put "ski" at the end of words ex: burntski, beatski, etc.
Did you see that guy knockin over the
beer pong cups on purpose for no reason whatsoever and then laughin like a
crazy person? He's on a meanski.
After Kristen took that
last shot she can't even walk straight but shes still grinding up on guys all sloppy, she's on a meanski.