Well this is certainly different from his original explanation!!
Well it appears he's changed his tune since then and his now saying his arm was tired because of too much masturbation! Wait, what???
"I have a skeletal muscle injury on my left shoulder from excessive masturbation so take it easy."
Um, gross and/or ick!!
Luckily it seems like the rapper was simply joking around, but we definitely did NOT need to hear that! We think we'll just stick with the wole "it slipped" story!
TMI, Mr. Cent!!