When something funny is heard, the semi pro football player incorrectly repeats what he heard while laughing.
Semi pro football players enjoy company while using the bathroom, so if they spot someone of the same sex taking off his watch to go take a dump, the SPFP is almost sure to follow so that he can enjoy the flatulence of the co-dumper.
SPFPs also enjoy flinging crap around the bathroom stall, drawing a picture of it, and then telling everyone that "someone missed the seat in the bathroom." It is really the S.P.F.P. that did it, though, because it is hard to tell where the anus is when the buttocks has such a large surface area.
X: AhhEEEE!! Thata sum loud thunderus nose in da stairwell
Josh: *opens stairwell door* Oh hey, guys! Sorry, I'm late. I had to "work out" because I'm a semi-pro football player.