2 definition by Dennis420Blazeit

Donacdum has two different definitions:
1: Don't Act Dumb is a line said by Houston, from the video game Payday 2. The community makes it sound like he is saying "Donacdum", and a Payday meme was created
2: A song created by Lord Simon Viklund, and voice actor and musician, mostly focusing on the soundtrack for Payday 2. While he worked with Overkill Studios, he created the song in the light of the communities reaction to Houstons voice line.

A character in the video game Payday 2. A Special Unit of Police Officer, and comes into an area occupied by the PAYDAY gang, hell-bent on taking them down, and always assaults with his buddies. But, he ends up being a vulnerable turtle that just sits in one part of the map very susceptible to explosives and fire. When he arrives, an officer will scream out to everyone in a five block radius that's he's here.