From Longman Dictionary of Contemporary Englishpull the wool over somebody’s eyespull the wool over somebody’s eyesTRICK/DECEIVEto deceive someone by not telling the truth → wool
Examples from the Corpus
pull the wool over somebody’s eyes• Don't try and pull the wool over my eyes - I can tell you've been smoking.• He found out we had been pulling the wool over his eyes for quite some time.• There are people who can pull the wool over peoples' eyes.• You can not pull the wool over Hooper's eyes.• You can't pull the wool over my eyes like that.• But it's not easy to pull the wool over our eyes.• The only conclusion a consumer can reach is that Microsoft managed to pull the wool over the eyes of millions of users.• The politicians are just trying to pull the wool over voters' eyes again. 