What is Mod Squad?
1.
A group of highly unattractive and socially awkward women who elicit looks of disgust from both male and female audiences.
A mod squad is usually assigned a theme song, often a song with no apparent similarity to the actions of the mod squad.
"Dude, you want to shoot some pool?"
"Naw man, the mod squad is using all the tables"
<Cue 'Money for nothin'>
See
2.
A group of undesirable people that often appear at inopportune times.
Often comprised of
1. Uh oh - here comes the mod squad!
2. Person 1: Hey are you coming to the party tonight?
Person 2: ...dude... its the mod squad
Person 1: Oh right, what was I thinking?
See