belly vs erect

belly

verb
  • To cause to swell out; to fill. 

  • To swell and become protuberant; to bulge or billow. 

  • To position one’s belly; to move on one’s belly. 

noun
  • The stomach. 

  • The main curved portion of a knife blade. 

  • The abdomen, especially a fat one. 

  • 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. 

erect

verb
  • To cause to stand up or out. 

  • To animate; to encourage; to cheer. 

  • To spin up and align to vertical. 

  • To lift up; to elevate; to exalt; to magnify. 

  • To raise and place in an upright or perpendicular position; to set upright; to raise. 

  • To set up or establish; to found; to form; to institute. 

  • To put up by the fitting together of materials or parts. 

  • To enter a state of physiological erection. 

  • To cast or draw up (a figure of the heavens, horoscope etc.). 

  • To set up as an assertion or consequence from premises, etc. 

adj
  • Having an erect penis. 

  • Rigid, firm; standing out perpendicularly, especially as the result of stimulation. 

  • Upright; vertical or reaching broadly upwards. 

  • Watchful; alert. 

  • Elevated, as the tips of wings, heads of serpents, etc. 

How often have the words belly and erect occurred in a corpus of books? (source: Google Ngram Viewer )