When a call centre staff member fails to hit the mute button on their telephone and obscenely berates the customer, inadvertantly allowing the customer to hear them.
staff member 1: Aaagghhhhh, f.f.s. this dipshit won't s.t.f.u. talking and let me fix his goddamn problem!!
customer: I heard that - who's your manager?
staff member 1: err, sorry sir.
staff member 2: LMAOMUTEFAIL
by garps August 19, 2008

5 Words Related to LMAOMUTEFAIL

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