The abdomen, especially a fat one.
The stomach.
The main curved portion of a knife blade.
The part of anything which resembles (either closely or abstractly) the human belly in protuberance or in concavity; often, the fundus (innermost part).
The womb.
The hollow part of a curved or bent timber, the convex part of which is the back.
The lower fuselage of an airplane.
To swell and become protuberant; to bulge or billow.
To cause to swell out; to fill.
To position one’s belly; to move on one’s belly.
A pig: a fat person.
An MCP; male chauvinist pig.
A pig: a police officer.
Someone or something that oinks.
A pig: a dirty or slovenly person.
A pig: a glutton.
A pig: an animal of the genus Sus.