9 definitions by j@mbo

A man who was once an internet God. Now, an internet punchline.
A: "Hey you want to hear a Joke"
B: "Sure"
A: "The Nostalgia Critic"
B: (Laughs)
by j@mbo February 11, 2021
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Short for "Grow Up You Baby". You see someone on the internet complain about some childish thing? Hit em with the GUYB.
A: "Kathleen Kennedy ruined Star Wars waaaa"
B: "Oh, GUYB and get a life"
by j@mbo February 12, 2021
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