Catch you later is a very casual way of saying goodbye. Cheers, catch you later.
It is American in origin and younger than most of its rivals. Like see you around it promises nothing, but it sounds friendlier.
1phrasecatch you laterA very casual way of saying goodbye.
“He picked up his bag and said catch you later.”
catch you later is a farewell.
Practised in Small Talk & Everyday Phrases