sapskull means A stupid person; a saphead. Lexicurio rates it Sui generis — a strength score of 88 out of 100.
Etymology
From sap + skull.
noun
- A stupid person; a saphead.“"Let go of my reins, you cow-handed sapskull!" Tassie reared as Pamela jerked her reins from the baronet's hands and smacked at him with her crop.”