erf

The error function. Computer programs such as Mathematica and Maple incorrectly evaluate about 95% of integrals taken over all space. When the program fails to recognize an integral, it automatically spits out "erf" for an unknown reason.

Person 1: Dude, we have a Quantum Mechanics homework set due in 30 minutes, & I can't figure out how to evaluate this integral.
Person 2: Don't worry, we'll put it into Maple!
Maple: Erf erf erf erf erf...
Professor: epic fail.

by MorvAreed April 14, 2009

erf

gansta way to say earth

we's da seeds of da erf

by chelsea September 1, 2003

erf

Phrase uttered when in a overwhelming state of confusion, mostly by dogs.

Erf? Uh, I should've studied for this test.

by droneaccount808 November 20, 2010

erf

erf is a word to describe a state of confusion. =

wah da erffff is that what you call your face ??

by Kevin Cheung August 9, 2005

erf

Erf is the word that people use on runescape to say "fuck you" as it is blocked.
Below is a graphical representation of erf.
......................... /´¯/)
......................,/¯ ..//
...................../... ./ /
............./´¯/'...'/´¯ ¯`·¸
........../'/.../..../... ..../¨¯\
........('(...´(..´...... ,~/'...')
.........\............... ..\/..../
..........''...\......... . _.·´
............\............ ..(
..............\.......... ...\

Erf off you erfed-up n00b!!!

by PerfectPudding January 1, 2008

Erf

noun. (erf)
1. A nonchalant noise often made by wired kids; 2. A building block in the formation of Queasy Erf Moneybags Bay Bay 4th gen. Bay; 3. E.R.F. - Every Redneck Farts; 4. Absolutely nothing

1. erf, erf...

by Queasy September 30, 2012

erf day

A day of celebration set aside each year to remember Sir James, a general in the Purple Army.

We gonna' party like it's your ERF DAY!

by Paradox2767 May 14, 2011