Gods, if you do NOT know who Jiper is, GO read the HoO series, THEN, and only THEN will you become civilised.
We all know
Percabeth, Caleo and Frazel.. Jiper is the FORMER ship
name of Piper Mclean and Jason Grace, BUT THEY BROKE UP! WOE IS ME! And um.. Jason's um..
Dead.
Percy: AWWW, here comes JIPER!
Jason: ...
Piper: Um.. Jason
Jason: WHO's JIPER?
Piper: It's our ship
name..
Jason:...
Percy: I dunno, Annabeth said it, I think it has to do with boats