Fifth Base

Fifth base is fucking a girl in the asshole.

Man, that girl has an onion ass.....I hope I get to fifth base on that shit!

by Pierce Binoche September 2, 2004

Fifth Avenue

A famous avenue in Manhattan that separates the east side of Manhattan from the west side in New York City.

"And who today would call on you to do miracles when the advertisements of Fifth Avenue and the lights of the elevator in the Eiffel Tower have changed night into day with a luminosity a hundred times more magnificent than that borne by Lucifer?” (an excerpt from Lucifer Unemployed by Aleksabder Wat)

by j0nni May 13, 2005

The Fifth Church

The Fifth Church, also known as the Church of Fifthism or the Fifthist Fellowship, is a highly secretive religious organization which possesses ties throughout the entertainment industry. Despite repeated investigations, culminating in the 2007 nationwide sting known as "Operation Stargazer", no further details regarding its doctrines, its practices, its number of members, or its goals have been confirmed, although a watchlist is maintained of 100 confirmed and suspected Fifthist celebrities and other prominent personalities. Its origins have been placed in varying points in the mid-20th Century and various locations in North America and Asia, but some sources have dated it to centuries earlier.

The Fifth Church has never communicated directly with the SCP Foundation, but is to be considered a hostile force.

The Fifth Church is a fucking joke. It's a complete mess.

by Mad Dummy April 9, 2019

fifth hacker

Someone who is considered even by hackers to be a disgusting, raunchy, nasty individual. Origin: "Four out of five hackers agree: Urban Dictionary's definition of 'doggy bag' is fucked up." "...so who's the fifth hacker?"

I heard Zack got caught dumpster-diving a Taco Bell. He must be the fifth hacker!

by MN2600 July 25, 2008

The Fifth Element

Boron, the 5th element on the periodic table, symbol "B". Used in weak acids and some alloys.

Teacher: "Give me the name of the fifth element on the periodic table"

Student: "Thats easy, its Boron"

by Zenith_VI April 22, 2006

fifth wheel

A person (most likely single) who tags along on a double date.

Yeah... Daniel wanted to join our double date. I feel sorry for that fifth wheel.

by mrbrooksshoe May 4, 2011

four fifth

a .45 handgun

must write 20 letters
must write 20 letters
must write 20 letters

i keep my four fifth tucked in my button up

by thebay707yeeyeeyee! April 14, 2006