IM shorthand while running to the bathroom

• Texter's "I will return shortly"
• "I'm away from the computer for a few minutes," in three letters
• "Hang on a sec," to a texter
• "One sec, gotta talk 2 my parents quickly"
• "Just a sec!," in a text
• "hold on 1 sec ok?"
• "Putting the phone down for a sec," in textspeak
• "Hold on a sec," in texts
• "Hold on a sec," while texting

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