1. An expression to indicate displeasure at an amount of work.
2. Indicative that someone has done more than is necessary.
Student 1: That took forever.
Student 2: That's DTM.
DTM refers to the German touring car race series held in the mid-80s through mid-90s. After being disbanded in 96 the series was re-established in 2000. The original series is analogous to the current BTCC and WTCC series, whereas the newer series feature more radically modified cars.
Slang for being screwed over hard, or severally owned. Worse possible case scenario.
I took a major DTM from my boss in yesterday's stand up.
Last night's snow storm DTMed our hopes of getting over the pass today.
I'm DTMing everyone in the office football pool.
Let's DTM these bastards.