To
masturbate. "springing" as the name suggests, is the repeated up and down
jacking of the "pogo"
stick, which of course is ... ya dick!
"OMG! What are you doing!?"
"Well
honey, i'm springing the pogo! Check it out, ima bout to
set a world record!"
"U
don't jack it!? Shit, i've already sprung it twice since i've been here!"