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Use "knobby" in a sentence
"His first eight days in captivity he spent in a room called the knobby room, a kind of torture room."
"To the "elderly scribe" was allotted the bed, a very finely carved wooden erection; but let me at once own that, although I had slept on hay in a tent in other lands, passed a night on a dining-room table, several on the floor, and in deck-chairs, I never slept in anything quite so "knobby" as that extraordinary bed."
"Also included is the aforementioned blooper reel, along with deleted scenes with commentary, which include the manufacturing of Jell-O shots and Gretchen's attempts to make the word "knobby" happen."