1. At the breast or pap.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• synking,
• squicking,
• saoking,
• sunkin,
• sooking,
• somking,
• seking,
• scuking,
• surching,
• nucking,
• soking,
• sickning,
• sucken,
• sitcking,
• sking,
• scoing,
• saking,
• sufing,
• shoucking,
• jucing

• succinct,
• succinic,
• sacking.

The adjective form of the word "sucking" is "sucky".

The plural of the "sucking" can be the "suckings".

The singular of the "sucking" can be the "sucking".