To have a massive erection which stands directly upward making it look as if there is a skyscraper in ones pants.May be easily spotted if one were to wear sweatpants.
You may wanna tuck that,it looks like your packin a skyliner between your legs.
by SIR DIRTY SANCHEZ March 09, 2005
1 more definition
purple wearing merc who will stab you in the butt.
I was over at Beibhinn's last night and she skyliner'd me really hard.
by xorth November 30, 2004