Synonyms would include chicken hearted, craven coward, wimpy, woosy, cowardly puke and others.
You lily livered coward; you wouldn't dare knock this chip off my shoulder.
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Can be used as a motivation expression to others.

Look, alive lily livers! Take your stance, steady and strong!
by Rangboomer November 26, 2013
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Nice way of saying mother-fucking son of a bitch. Old Sea Captain/pirate's term: Because you were considered to be a weenie if your liver couldn't handle liquor and you did not have your sea legs...arrr.
Swab the decks and man the main sail you lily livered land lovers; batten down the hatches before I have you all keel hauled!!! Arrr!
by thedzone October 14, 2009
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