A contracted form of "What is up" or "What's up". See "What is up".
Seeing some friends, I often say "sup" to start a conversation and to see what they are up to.
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Vul hier je e-mailadres in en ontvang elke ochtend gratis het Urban Word of the Day!
Je zal emails ontvangen van firstname.lastname@example.org. We zullen je niet spammen.
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