Someone who drinks tequila straight from the bottle or someone who hogs the tequilla
My mom stopped being a tequilla shark after going to AA meetings;

"Katy left a full bottle of margarita mix but no tequila, I guess we are going to have to use triple sec now."
"Ok, thats it, tequila sharks are no longer invited to my parties!!"
by KatilinaFeva September 25, 2011
Get the Tequila Shark mug.