From Longman Dictionary of Contemporary Englishruntrunt /rʌnt/ noun [countable] 1 HBAthe smallest and least developed baby animal of a group born at the same timerunt of the runt of the litter2 informalWEAK a small, unpleasant, or unimportant person
Examples from the Corpus
runt• She was a runt no longer.• Most are poor quality, being deformed or runts.• Ronnie was what was called a real runt, not much bigger than Petey.• An induced birth after thirty-six hours of false labor, the runt of a litter of twelve.• He was the runt of the family, and the last born.• He was even worse off than you were, runt.Origin runt (1500-1600) Perhaps from Dutch rund “cow, small ox” 