Definitions
1.NounAlternative form of omer: a former Hebrew unit of dry volume equal to about 2.3 L or 2.1 quarts.
2.NounA conical chamber at the breech of the bore in heavy ordnance, especially in mortars.
3.NounA stupid, awkward, or oafish person.
4.NounAn inept trainee or serviceperson.
5.NounAn opponent in combat or in training.
6.Noun(husbandry) A male animal (cattle, swine, horse mainly) used to arouse a female or detect, through her induced behavior, her hormonal availability for reproduction. Also called a teaser, a gomer may or may not be neutered, unless this element draws the line between those two synonyms. This particular meaning could also be the originator of the Gomer Pyle entry and not be a derivative.
7.NounAn undesirable hospital patient, or a patient who does not need medical care."That patient is a total GOMER. Turf him and let's get some lunch."
8.NounA dirty, senile, or otherwise unpleasant patient.
9.NounA patient who does not respond to medical treatment.