A comment made after an answer to a previous question. The comment means that person who makes the question had no important reason to ask, but was just curious.
the biggest FUCKING lie of ALL time. If anyone ever says "just wondering" you have the right to black mail and interrogate that son of a bitch until you uncover the truth. ESPECIALLY if it's about someone you might like.
Bad excuse to cover their true intention. Although it's easy to acknowledge that they are "just wondering," people use this phrase all the time for cretinous reason. I don't know.