Definitions for wassailer
Random House Webster's College Dictionary
was•sailˈwɒs əl, -eɪl, ˈwæs-, wɒˈseɪl(n.)
(in early England) a salutation offered when presenting a cup of drink to a person or when drinking that person's health.
a festivity or revel with drinking of healths.
liquor, as hot spiced ale or wine, used in drinking another's health, esp. at Christmastime.
(v.i.)to revel with drinking.
(v.t.)to toast (a person).
Origin of wassail:
1175–1225; ME was-hail=was be (OE wæs, var. of wes, impv. of wesan to be; akin to was ) +hailhale1, in good health (< ON heill hale)
someone who enjoys riotous drinking
someone who proposes a toast; someone who drinks to the health of success of someone or some venture
one who drinks wassail; one who engages in festivity, especially in drinking; a reveler