S.W.A.L.K.
(Pronounced "SWALK", this acronym means "Sealed With A Loving Kiss". It's a term of endearment, often written on the backs of envelopes, particularly in love letters, and popular before World War 2).
(Pronounced "SWALK", this acronym means "Sealed With A Loving Kiss". It's a term of endearment, often written on the backs of envelopes, particularly in love letters, and popular before World War 2).