In Internet slang it may be used as a placeholder expression (dialog may be expressed as "you just got derped") or a response to a question, signifying stupidity.
"Got to go", "Good to go", and "Get together"; various Internet slang ("g2g" and "GTG" also used with the same meaning); see also English internet slang on Wiktionary
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Many popular and technical threads were posted during that period, which saw the creation of numerous internet slang expressions, such as BT (spirit of helping people selflessly), YY (dream about things that will not happen), 874 (slap in the face), 253 (admire), 110 (police), 233 (laughing out loud), Orz (a figure of a person kneeling down facing left), etc.