RUCB
RUCB definition by Slang.net - The Slang Dictionary
This page explains what the acronym "RUCB" means. The definition, example, and related terms listed above have been manually compiled and written by the Slang.net team.
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Those who post RUCB in online chat want to know, "Are you coming back?" You're most likely to receive this acronym as you sign off from a chat session.
Sometimes, you might re-open a chat session and find you missed an RUCB message that was sent after you had already signed off. In these cases, the answer to RUCB was apparently "No."