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1.
Blow job until ejaculation and the boner has become limp.

Long refers to the duration of the act.
Kiss refers to her lips on a man's dick.
Goodbye refers to the sperm and a mans boner going away after the act.
Man1: She gave me a long kiss goodbye right before I left for work.
Man2: aww sweet man.
by Give me a BJ biotch February 14, 2014