im not sure but ee is used to insult a female i think it means like b***h slut and pee can mean fat so maybe you called her a fat crazy b***h slut im not certain about this but it's definately a good idea NOT to say it again best to just say khun ting tong =you are crazy or khun ting tong maak= you are very crazy.Anyway good luck hope she understands your mistake.
my b/g had a friend named pon or pong something like that, i whispered to my girl one drunken night-- "ping pong ting tong " -she went mad "you no say!!!"i thoght it was quite amusing at the time