
1) Ape 2) Ass 3) Blockhead 4) Bonehead 5) Clod 6) Dolt 7) Dunce 8) Dunderhead 9) Fuckhead 10) Hammerhead 11) Knucklehead 12) Loggerhead 13) Moron 14) Muttonhead 15) Numskull 16) Sap 17) Shithead
Found on
https://www.crosswordclues.com/clue/lunkhead

1) Blockhead 2) Bonehead 3) Bozo 4) Dolt 5) Dunce 6) Dunderhead 7) Fuckhead 8) Hammerhead 9) Japanese rock music group 10) Knucklehead 11) Loggerhead 12) Muttonhead 13) Numskull 14) Shithead 15) Simple 16) Simpleton
Found on
https://www.crosswordclues.com/clue/lunkhead

Lunkhead (ランクヘッド) is a Japanese rock band signed under Victor Entertainment and is managed by Chockyu co. ltd. The band played its first show during their high school graduation ceremomy in 1999. Lunkhead officially became a band when all four members reunited in Tokyo in 2000. On 2 February 2009, drummer Ishikawa Ryou announced on the...
Found on
http://en.wikipedia.org/wiki/Lunkhead

Lunkhead is slang for a slow-witted person.
Found on
http://www.probertencyclopaedia.com/browse/ZL.HTM

a dull or stupid person; blockhead. Also called
Found on
https://www.infoplease.com/dictionary/lunkhead
No exact match found.