"I need a short break," in chat rooms

• "Hang on a sec," online
• "Returning soon," in online shorthand
• "Gimme a minute," in an online chat
• "Just a sec," in text-speak
• "I'll return in a minute," in instant messaging shorthand
• "Have to step away for a sec," breifly
• Texter's "Gimme a sec"
• "Gimme a sec," in chats

Wiktionary Word definitions in Wiktionary
init. (alternative case form of BRB nodot=1 English) (gloss: be right back).