What is Fill-in Friend?
1.
A person who is a friend, only when your other friends are not present.
Also referred to as a "number two". Any social networking site has a Top Friends, and the number is your next best friend.
"Well, John isn't here, so I guess I'll have to talk to my fill-in friend."
"Amy had to go to the concert, so I guess it's just me and the number two."
See
Random Words:
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Defying definition since 1977.
I don't even know, that <blank> is so st00p1dfac3.
See indescribable, unknown, strange..
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A woman who is so ugly no man would ever even think about hooking up with her. Therefore she is forced to become a lesbian with someone ..
