That dude believes everything he hears and says but has no clue about what is actually happening.

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

A person that has been tricked into something.
A gullible person.

a gullible or easily deceived person.

to love something obsessively

anyone who falls for scams and tricks

One who falls for a particularly stupid plan or scheme.