Chunk??

So me and my sister are sitting on my bed talking and watching YouTube videos. Her Utah buddy Logan calls and they start chit chatting and for some reason we were watching a really stupid video and could not stop laughing. About 10 minutes or so go by and for some reason livi brings up how in my senior pictures I'm skinny and cute and shes all jealous. I keep telling her that she isn't fat so i don't know what her problem is but she was making fun of me so I called her CHUNKERS it was really funny cause she got really mad at me.