The 'Panama Pump' is a sexual act involving two women and two (or more) men.
One women lies on top of the other perpendicularly, with both women on their backs. The girl on the bottom holds the one on top in a 'Bow-and-arrow-submission lock' and multiple men are free to enter her either by the mouth and vagina and/or anus. Additional men are then free to enter the women on the bottom in all orifices.

A drinking game, also known as shoties.

Played with beer in a can, usually Coors Light (hence "Silver Bullet"). You must make a hole at the side of the can near the bottom that is roughly the size of a coin. (a proper shotie hole is a clean cut sqaure) Obviously tilt the can on an angle upside down so when you make the hole, so no beer runs out. You can cut using a house/car key, or a knife.

Make the hole so it compliments your opening hand, (lefty, righty) and how you will open the top of the beer. Because what you have to do is, when spectator(s) counts down from five, on the 1 count you must put your mouth on the hole, (you can start with your mouth on it already) tilt the beer upright, open the can, and chug it... All within that 1 count.
You will finish the beer in about 3 seconds because of the air escaping through the top, and will get lightheaded fast and drunk as fuck later. (No oxygen mixed with beer while consuming; alchohol goes straight through your system)

The point of the game is you want to chug your beer the fastest out of everyone; you play with about 3-4 people, until the 24 is finished. The last person to finish each shotie,(if finishes) is named "nurse". Also, it is mandatory that when all players are done their shoties, (especially winners) they hold their can up and pour the remaining drops; if a good amount of beer pours out, (enough to mop the deck) then they will also receive the "nurse" title as well, and 2nd place will be winner.
If ...

One who removes an arm from a long sleeved shirt whilst grabbing the empty sleeve with his other hand and making a pumping motion with it. The removed arm remains underneath the shirt and is used to thrust through the hole created between the two sleeves.

Pumpers often travel in packs and exclusively listen to KRAT

Pumpers rarely pump it down low, they mostly try to pump it up.

Jersey Shore is a reality tv show on MTV with 8 guids from areas around New Jersey. The show takes place in Seaside Heights, which is the guido capital of the world. The show consists of the room mates going to clubs and getting pissed off at haters and other people that arent guidos (also haters) which is all understandable cause they are hatin. The guys in the house go out and fist pump all night and grind up on any girl in sight. The roomates work at a crappy tshirt store that prints gay ass designs on there shirts. Alot of the roomates complain a crap load but some are legit. But they all are guido americans who love and cherish there families Which is important to them.

An unexpectud ejaculation after watching at least two full hours of the MTV show "Jersey Shore", after going through the daily trinity (Gym Tan Laundry)(GTL) or after fist pumping like a champ all night at the club

n. a person who's social identity and sole means of recreation is based on partying at the hottest, trendiest clubs relating to 'the scene'. While they exist as both male and female, the female species tends to dominate based on their increased accessibility to free alcohol, VIP invites, premier openings, court side tickets, bottle service, and other unmerited vaginal based gifts. During multiple days of the week, they can be found dancing, drinking and networking (read: meeting strangers to add to their Myspace/Facebook account). Commonly associated with being a slut bag, they are usually adult 'wild childs' raised mainly by single parents possessing similar qualities. Because they live hard and party harder, their defining physical characteristics include: scratchy/horse 'I've been partying all night' Lindsey Lohan type voice; whitened bleached teeth with brown cigarette stains between the individual teeth; dark circles under the eyes; and premature facial wrinkling resulting from alcohol dehydration and overuse of indoor tanning beds. Behavioral identifiers in their native habitat include alcoholic beverage and cigarette bumming moochiness; all of which are necessary means of survival resulting from disposable income that is dedicated to the latest, questionable, attention garnering fashion so as to maintain their faux-socialite image.

weekly drunkeness at a friends house including :
fist pumping, pacman, card games, dance breaks, spilling beer on the floor and passing out.