Err has two intentions.
1. To insult another on a mistake or stupid comment they said.
2. To make another person out to be mentally retarded.
To fully understand the use of Err, Herp-a-derp is helpful as it is the same type of insult. Err is a very flexible payout and can be paired with a number of other insults. The most common is the use of "Kid" at the end to form Err kid! Kid has no second meaning other than to "be-little" its intended subject.
Finally the use of Err, also has a physical aspect. The use of a hand gesture is "the icing on the cake" when using this insult, especially if it is also paired with "Kid" as above. To describe this hand gesture, it is kind of like a Karate chop, stopped halfway through leaving the hand pointing at the person you intend to insult. An extra note is to use agression, you cannot be too big with this payout, thats why its so wonderful :)
1. To insult another on a mistake or stupid comment they said.
2. To make another person out to be mentally retarded.
To fully understand the use of Err, Herp-a-derp is helpful as it is the same type of insult. Err is a very flexible payout and can be paired with a number of other insults. The most common is the use of "Kid" at the end to form Err kid! Kid has no second meaning other than to "be-little" its intended subject.
Finally the use of Err, also has a physical aspect. The use of a hand gesture is "the icing on the cake" when using this insult, especially if it is also paired with "Kid" as above. To describe this hand gesture, it is kind of like a Karate chop, stopped halfway through leaving the hand pointing at the person you intend to insult. An extra note is to use agression, you cannot be too big with this payout, thats why its so wonderful :)
by MagicJenkins October 7, 2011
Get the Errmug. 
by DONNA aka... BadestChck November 5, 2003
Get the errredmug. 1) Used when someone misunderstands something.
2) A short saying sometimes used when trying to sound inoscent.
2) A short saying sometimes used when trying to sound inoscent.
by Keegan September 17, 2004
Get the err wotmug. by Seche July 13, 2009
Get the Lao Errmug. A Word to describe a group of people or objects that's level of stupidity or lameness is so overwhelming it cannot be measured in a normal level.
by kph24 September 17, 2007
Get the Err Nationmug. Meaning: 'Everytime' associated with the southern american accent, where they pronounce 'Everytime'- 'Err Time'
by Mike AJ M August 12, 2005
Get the Err Timemug.