Pronunciation (L-ei-ououou) This is the sound a male sloth makes when it is horny and ready to find a mate. Its bellowing call attracts all the female sloths. Additional "U" sound can be added to make the call longer for example "Leiuuuuuuuuu"

Noun: a friend who is usually only called upon by a friend when a more primary/prominent friend is unavailable.

Taken from the term “second string” in an athletic competition situation. In football, if the star quarterback gets injured during a play, the second string is called off the bench to replace him/her. A “Second String Friend” is essentially benched until needed, if ever.

Synonyms: Plan B, Second Choice, Secondary Friend, Benched Until Needed