Do you know what Wsp means, Here are some funny possibilities for your reply if you got a text saying "WSP":
Nothing much, just waiting for the pizza delivery!
WSP? I'm trying to remember why I walked into the kitchen.
Lol, just chilling in my pajamas.
WSP? Just waiting for my pet to finally pay rent.
A witty reply will surely add some fun to the conversation! I hope you will understand how to reply to use on any platform.