Dictionary

beer baby en · NOUN

By a jocular implication that the protruded abdomen is like that of pregnancy.

(informal) A protruding belly attributed to excessive consumption of beer.
- So often we hear of weight management issues in relation to women, with men burying their heads in the sand, dismissing this serious health issue saying things like "it's just middle aged spread" or "it's my beer baby." 2013, Belinda McPherson, “Men and weight loss”, in North East Regional Extra, 27 November - 3 December 2013, page 8:
- Lounging around the keg at a party, sipping beer all night, is one way to meet guys ... and then have them stop texting you a few weeks later on account of the beer baby you've started to gestate. 2008 September 30, Esti Frischling, “Vegging out”, in The Diamondback, University of Maryland, page 5:
- 'I've got a baby on the way too. A beer baby!' he lifted up his t-shirt to show a huge saggy belly, covered in mousy hair. I gave a high pitched laugh then we sat in awkward silence until Angie and Chloe came back with the drinks. 2014, Robert Bryndza, Coco Pinchard, the Consequences of Love and Sex, unnumbered page:

Spelling	Features	Labels	Source
beer babies	Number=Plur		lexicographic

beer muscles (paunch attributed to beer) · beer gut (paunch attributed to beer) · Molson muscle (paunch attributed to beer) · German goiter (paunch attributed to beer) · beer belly (paunch attributed to beer)