Asking someone what a word means:
Pangutana: Unsay buot ipasabot sa kaha?
Question: What does kaha mean?
Asking someone what someone meant:
Pangutana: Unsay buot ipasabot ni Tony (non-subject pronouns; sa/sa mga) sa pahalipay?
Question: What did Tony mean with pahalipay?
What - unsay
Mean - buot ipasabot
Try practicing this expression until it becomes automatic and you can use it whenever the situation arises.