This phrase is known to originate in competitive pokemon. Often on pokemon discussion forums threads will be created to ask for help in building a pokemon team. Frustrated veterans will often simply post MYODT if they don't feel like helping or if the topic creator is becoming difficult.
Poster 1: Hell no, I don't have time for this...
Poster 2: MYODT, n00b.
Poster 3: My milktank brings all da boys to da yard.
Topic Creator: Okay, I'll try for myself guys. :(