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 02, 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 17, 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 July 19, 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 December 06, 2007

erfed

1. To be high out of you mind.
2. To be blown hard or fucked hard by a bitch

1. Dude last night i smoked a 50 and got so erfed.
2. Yo my girl erfed me so hard last night i cant stand straight.

by Kevin Forero May 08, 2008

Erf

erf is the planet we live on.

there are alot of people on erf.

by nick April 29, 2006