What is the meaning of Jeer?

A mocking remark or reflection.

To utter sarcastic or mocking comments; to speak with mockery or derision; to use taunting language.

To mock; treat with mockery; to taunt.

A gear; a tackle.

An assemblage or combination of tackles, for hoisting or lowering the yards of a ship.

indeed, verily, truly, actually

to fall

hippopotamus

Source: wiktionary.org