Packing your backpack just before the end of class as the teacher is giving the last information like homework or reminders that "There's a quiz tomorrow!". Useful before lunchtime to gain a jumpstart in the lunch line or at the end of school.
Joey: What the hell? How did he get the the front of the line?
Mac: Preemptive packup i bet.
To put you arms in the space between the person wearing the backpacks back and the part of the backpack that rests against the person’s back and pulling down hard causing them to fall to the ground
Jack: hey did you here about josh?
Jacob: no what happened?
Jack: he kept getting Packed by Carson!
the scientific name for a car or large group comprised of only women
Dude, look at that girl in that clam pack! Her smile is beautiful
being very stacked
voluptous
having very big Bazonkers
milky big honkers
Look, that person is mad packed.
Oh, I agree with your statement about them having mily big honkers.
Man I hit that shit so hard, it looks like the hulk's packed lunch
one of the sweetest most beautiful girls to come out of southern indiana. she has a kind heart and a big beautiful smile, but she worries too much about other peoples feelings and puts herself last. she is more than likely the girl next door. the mary-jane to your peter parker.
brian: dude, i seen this total Casey Pack the other day!!!
Steve: dude did you fuckstretch her?
brian: nah man you dont fuckstretch a Casey Pack, they are the girls you just love to death.