ripped the ass out of my pants

This is a term used while you are bending down and picking up something off the floor and as you do so your pants get ripped or torn. Performing manual labor.

Danny B was loading some cigar boxes and all of a sudden he Screams out load "Fuck" and tells me. Dude I just " ripped the ass out of my pants" and I just bought them.

Loading some boxes over head and screamed "Fuck dude I just ripped the ass out of my pants"