necked (Adjective) — Having a neck or having a neck especially as specified (often used in combination).
necked (Verb) — Kiss, embrace, or fondle with sexual passion. ex. "The couple were necking in the back seat of the car"
necked (Verb) — To swallow hurriedly, greedily or in one draught.
necked (Verb) — Make or become more narrow or restricted.