1. Obviously
2. More intense version of "duh." ("Everyone knows THAT.")
1. (guy 1) Do you like her?
(guy 2, staring at her) Guh-doy!

2. from "Wreck-it Ralph."

Ralph: (falls out of a candy cane tree)
Vanellope: "double-stripes (candy cane tree branches with 2 red stripes together) break, GUH-DOY."
by Jeering Madly November 3, 2019
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