Annoying, entertaining, or just out right stupid sounds, music, and such. Usually done in Ventrilo servers with soundboards, and also Team Fortress 2, Counter Strike, Battlefield, etc. Source Engine games are popular for it.

Popular micspam is using Wavs Files. And playing them through the game with programs such as HLSS or HLDJ.

Either found entertaining, or annoying, or both but different people have different opinions.
Mic spamming Rickroll, bonk songs, and such.
by iDaedalus March 19, 2009
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