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Short for titty fucking, used by me because I think titty fucking sounds too harsh to describe something that involves something as wonderful as breasts.
by elena April 07, 2005
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Jul 15 Word of the Day
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.
Billionaires are having a dick swinging space race while the earth experiences record breaking heatwaves that cause sea creatures to literally cook inside their shells. We need planetary quarantine.
by monkeylabor July 14, 2021
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2
The act of lying to everyone, and anyone, especially your friends. Also includes over exaggerating, and being an ass hole.
Tiffer: Yo we had 100 cases of Miller High Life last night!
Victim: Dude, are you tiffing me right now?
Tiffer: No man!
by NT2795 April 26, 2011
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3
to chill or to hang out
Amy: What's up kid?
John: Nothing, wacthing the telly, totally tiffing it dude.
by egypt March 21, 2007
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