Lanngent 

The art of sudden digression from an ordinary topic to engage in a diatribe about a ridiculous subject or idea and/or the narration of a sexy story of coolness cubed.

Tom was teaching us a lesson on bridges when he say a bird and went on a lanngent, telling us about when he hunts crows with a shotgun.

Lanngent by Sapper Ugly June 3, 2009

Lanngent 

to depart from the original direction of conversation at a sharp angle without any apparent reason or warning and return to topic with no explanation or apology.

The instructor was teaching us how to conduct activities safely when he went on a Lanngent and started talking about a boss he used to have. No tie in whatsoever and after back to the original topic like nothing happened.

Lanngent by ttttttttttom May 27, 2009

Langenthal 

A general math teacher with a hard life and interesing students. Sometimes rude and mean

Mrs. Langenthal made us have a pop quiz.

Langenthal by rabro clast March 27, 2011

langentoonville

A term to call out people who uses unpopular or unknown terms. Just like langentoonville, which isn't an actual used term.

Person 1: Ah yes, let us just say that this conversation is a bit rednocks.
Person 2: You're using langentoonville.

langentoonville by Ria_Dara May 17, 2021