Definify.com
Webster 1913 Edition
Vap
Vap
(văp)
, Noun.
[See
Vapid
.] That which is vapid, insipid, or lifeless; especially, the lifeless part of liquor or wine.
[Obs.]
In vain it is to wash a goblet, if you mean to put into it nothing but the dead lees and
vap
of wine. Jer. Taylor.