I couldn't block out of my mind, my wife's statement a few days ago; think of all the children who he could be saving.
The nagging question of Fitzgerald continued to block out the other important matters Dean should have been concentrating on.
She repeated the sentence over and over to try to block out what her senses told her about the size of the monster.
All she wanted was the coziness of her studio, where she could block out everything and paint.
The term was first used in this sense by Flavio Biondo, whose "decades" was an attempt to block out the annals of history from 410 to 1410.