The 57 refers to a hungarian pub named 57. This became popular among teens in Hungary, and became a meme for no literal reason.

The safeguarding of Earth and other worlds from biological cross-contamination (i.e. billionaires with too much time on their hands).

Also known as “planetary protection.” Planetary protection / quarantine “reflects both the unknown nature of the space environment and the desire of the scientific community to preserve the pristine nature of celestial bodies until they can be studied in detail.”

There are two types of interplanetary contamination. Forward contamination is the transfer of viable organisms from Earth to another celestial body. Back contamination is the transfer of extraterrestrial organisms, if such exist, back to the Earth's biosphere.

57 is in reference to the Heinz "57 varieties" of ketchup. The bottled version of their ketchup doesn't pour easily, so you must tap the bottle on the 57 logo to pour ketchup more easily. When someone is having a hard time getting ketchup out they are given the advice "you must tap the 57". Because of this, in recent days, people have been using the number "57" in place of the word tap; usually replacing tap when the sexual meaning of the word is implied. It can also be found tattooed as a tramp stamp on some women as a subtle cue to "tap that ass".

IN BRIEF: Short for 'Heinz 57'

1. A person that's a born mixture or known mixture of at least 2 or more differernt races.

2. A dog that's a mixed breed.

57: the act of a woman on her period holding he lover from the ankles behind her while the lover licks the anus

literally the best height for a girl. you can steal stuff from the smaller bbs without them being able to do shit, but it's not impossible to find a bf/gf taller than you - which is amazing if you're a little submissive bitch.

the new 69. Inspired by a list of top qualities in a guy. Number 5 & 7 on the list being
5. They know that to keep a woman around, they have to stimulate ALL of her senses – physical, emotional, intellectual and spiritual. Good guys can satisfy a woman’s needs in every aspect of life and beyond.
and
7. Make love to a woman’s soul at the same time as her body. Merging with her soul is their ultimate goal…not just a mere orgasm.
Think every girls Ryan Gosling fantasy.

Also called taking her to the Meadow. Named after the girl who inspired this new level of hotness.