expression
just out for a bit; nowhere in particular; toilet break (euphemism)
A casual phrase used when stepping out briefly, often without specifying a destination. Can also serve as a euphemism for going to the toilet.
ちょっとそこまで買い物に行ってくる。
I'm just popping out to do a bit of shopping.
「どこ行くの?」「ちょっとそこまで。」
"Where are you going?" "Just out for a bit."
すみません、ちょっとそこまで。
Excuse me, I need to go to the restroom. (euphemism)