What does WBWYC stand for?

Write Back When You Can

WBWYC is an acronym typically used online and in texts that means "write back when you can." It is an extended version of _WB_, which is also used in texts and online. Since the "WB" acronym can sound a little demanding and needy, "WBWYC" is a good option that adds "when you can." However, the added characters may make the acronym more confusing to some recipients so "WB" may be your best option.