1) Decollete 2) Did some canoodling 3) Did some smooching 4) High-necked 5) Kissed in the Kia 6) Low-cut 7) Low-necked 8) Made out 9) Necklike 10) Osculated in the Olds 11) Pitched woo 12) Polo-neck 13) Spooned 14) Throated 15) Turtleneck 16) Turtlenecked 1) Decollete 2) Necklike 3) Spooned 4) Throated 5) Turtleneck 6) Turtlenecked 
• (imp. & p. p.) of Neck • (a.) Cracked; -- said of a treenail. • (a.) Having (such) a neck; -- chiefly used in composition; as, stiff-necked. • (a.) Cracked; -- said of a treenail. • (imp. & p. p.) of Neck • (a.) Having (such) a neck; -- chiefly used in composition; as, stiff-necked.
Necked adjective 1. Having (such) a neck; -- chiefly used in composition; as, stiff- necked . 2. (Nautical) Cracked; -- said of a treenail. 
[adj] - having a neck or having a neck especially as specified (often used in combination
adjective having a neck or having a neck especially as specified (often used in combination)
having a neck of a kind specified (usually used in combination): a square-necked blouse.