battle of the bulge

noun2

1. •
   (humorous) An attempt to avert weight gain or obesity.

   • People don't exercise just to become more fit; they also do it to lessen stress, become sexier, improve their skin, and most of all, become thin. The battle of the bulge has become big business. — 1984
2. •
   (humorous) An attempt to conceal one's erection.

   • I just went ahead and let her feel it and she didn't back away from the battle of the bulge, if you know what I mean. — 2014