off the wall is a little hard to explain it means something that is so out there even your mom says holy fuck
What the fuck is your dog doing to that chipmonk...o thats off the wall.
Dude i cant believe she is doing that...that is some off the wall shit right there
The coolest shit ever, or meaning that your about to kick someones ass.
That is fucking congress ass, or i am about to go congress on that mother fucker