DYL full form-Do You Like…?

What is the full form of DYL and meaning ?

Lucy made Pasta for Dinner and send some for John also, Next morning Lucy message him on instant messenger DYL..?

When John send photograph of himself through mobile texting to Lucy , He asks her DYL..?

When someone does something special for someone or gives them a surprise, then  in order to know its result he/she asks other person Do you like..?