molehill /ˈməʊlhɪl/noun 1verb 1forms 3phrases 1 noun1 •A small mound of earth created by a mole's burrowing underneath the surface of the ground. verb1 •To exaggerate a problem and perceive it as larger or worse than it actually is. formsmolehilled · molehilling · molehills Phrases with molehill molehill mountaineerA person who habitually exaggerates or overemphasizes minor issues.