Two hard L-words, second word: Lunker
By Anatoly Liberman
Lunker seems to be well-known in the United States and very little in British English. Mark Twain used lunkhead “blockhead.” Lunker surfaced in books later, but lunkhead must have been preceded by lunk, whatever it meant. In today’s American English, lunker has several unappetizing and gross connotations, and we will let them be: one cannot constantly deal with turd and genitals.