Best I can figure since I don’t know the language:

Girl cat: “Mrep” is “Hey I see you/Hello/Aloha/Nameste” “Mrow” is “Gimme cheek rubs” “Mrp” is “I like you”

Boy cat: “Murp” is “Look at my belly/wanna play?” “Murrow” is “Pick me up and carry me around” “Mrayer!” Is “Don’t leave me, pick me back up!”