wool
all wool and a yard wide of excellent quality; thoroughly sound.
☞ Literally, this expression refers to cloth of the finest quality.
1974Anthony GilbertA Nice Little Killing No one will ever catch her…with an alibi all wool and a yard wide.
dyed in the wool: seedyed.
pull the wool over someone's eyes deceive someone, especially by telling untruths.
2012New Statesman The business about wealth taxes is another pack of lies from him to pull the wool over the eyes of the Lib Dem rank and file.