I can't even begin to describe it. Archer is a secret agent and hijinx ensue. I highly recommend heading over to Hulu and watching all the episodes they have on there. Soooo funny. I wouldn't really compare it to Deadpool though.
I thought it was gonna be the dumbest show but I checked it out once. and Idk man, he says some stuff that I would only expect to come out of deadpool's mouth. Definitely doesn't have the depth of Deadpool but it does remind me of Deadpool when I watch it. The back and forth with his mother reminds of Wade and Blind Al a lot!
