Undegree Share definition Flag Noun, or Adjective. A person without a college degree. Or, in the past tense, someone who now has a degree, but at the time did not. I would have hired him/her, but he/she was an undegree. Undegree by Beer_ June 17, 2010 0 0 Get merch Get the Undegree mug. Buy Now — $32.95 See more merch