To masturbate at a reduced pace. Sometimes performed for hours at a time.
"Yo man, slow jacking has so many benefits. Why just the other day I was cooking while I jacked, try the oven mit, it's just like givin' yo'self a stranger."
Por Billabong aka Buck-deezy 15 de febrero de 2006
The act of borrowing something from a friend with the intent of returning it, yet you never do and end up keeping it.
I loaned my friend a CD and he slowjacked it from me.
Por James Fairbanks 30 de diciembre de 2005