squeaker

/S K W IY1 K ER0/
noun
  1. 1

    One who or that which squeaks.

  2. 2

    A party toy that uncoils with a squeaking sound when blown; a party puffer.

  3. 3

    An informer.

  4. 4

    A game or election won by a narrow margin.

  5. 5

    An animal that squeaks.

  6. 6

    An act of flatulence; a fart.

Source: https://en.wiktionary.org/wiki/squeaker