Top definition
The awkward third guy in a party of three that contributes whisper like echos of what the other group members say. for every three normal people in the world there is one awkward third guy.
there was Leo, Maudie, Lalo, and that awkward "Mr. thirdguy" Richy.
by laloman94 October 28, 2011
Get the mug
Get a Mr. thirdguy mug for your guy Riley.