Falʹstaff.
A fat, sensual, boastful, and mendacious knight; full of wit and humour; he was the boon companion of Henry, Prince of Wales. (1 and 2 Henry IV., and Merry Wives of Windsor.)
· 
· 
Entry taken from Dictionary of Phrase and Fable, edited by the Rev. E. Cobham Brewer, LL.D. and revised in 1895.