It will be used in the upcoming Primus album.

I don't what on earth Ya Mado and Ferre were doing at the end   

they are matching the real lyrics of that part( it was pardon lobi,pardon lobi,to ko dobé lobi but they kinda changed it to make it less shocking)

I'm sorry two "straight" men(Ya Mado) can't do that to each other. Rubbing there private parts on each other like their the opposite sex eza salite penza ...Ferre's group is just full of men who like other men.