But McWatt was incorrigible, and, while he never buzzed Yossarian’s tent again, he never missed an opportunity to buzz the beach and roar like a fierce and low-flying thunderbolt over the raft in the water and the secluded hollow in the sand where Yossarian lay feeling up Nurse Duckett or playing hearts, poker or pinochle with Nately, Dunbar and Hungry Joe.
Instead, he found himself with Yossarian, Dunbar and Hungry Joe in a whore house in Rome, poignantly in love with an indifferent girl there with whom he finally did lie down the morning after the night he slept alone in the sitting room, only to be interrupted almost immediately by her incorrigible kid sister, who came bursting in without warning and hurled herself onto the bed jealously so that Nately could embrace her, too.
There are no more uses of "incorrigible" in the book.
Show samples from other sources
She was declared an incorrigible delinquent and sent to reform school.
Incorrigible drunk driver sentenced to life in prison