Silver Bullet

An insult to describe a person who is addicted to coffee and is extremely out of shape. They have horrible bladder control and go to the toilet every half hour. They also like getting in fights, preferably with people of Lebanese origin

Andy: Be right back guys, I'm gonna make a cuppa
MaFox: wtf man, that's your 3rd one
Andy: And go to the toilet
MaFox: Aw ya fucking silver bullet!