Conehead

noun, slang

noun, slang ·2 syllables ·Moderate ·College level

Definitions

Noun
  1. 1
    One of a fictional race of humanoid aliens with conical skulls.
  2. 2
    A fan of baseball pitcher David Cone. slang
  3. 3
    Alternative form of Conehead. alt-of, alternative
  4. 4
    A foam rubber rounded cone hat to be worn atop the head as a costume to appear to have a conical bald skull.
  5. 5
    An insect of the katydid subfamily Conocephalinae.
Show 4 more definitions
  1. 6
    Any member of the order Protura of insect-like arthropods.
  2. 7
    A person who has undergone cranial modification in order to produce an elongated skull. informal
  3. 8
    A person addicted to smoking marijuana with a bong. Australia, slang
  4. 9
    A pinhead, a stupid person. slang

Etymology

Etymology 1

From cone + head.

Etymology 2

From Cone + head.

Related phrases

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.