A practical joke in which take an Olly Murs album (any will do) and the place it down your boxers, about an hour will do, and then place it on your mates face.
This is the direct opposite of a Sweet Tooth.
If someone has a savoury tongue, they are a person that prefers savoury foods over sweet foods.
Tongue is referred to in this definition because "sAvOuRy ToOtH" just doesn't sound catchy. #IDontMakeTheRules
"I'm more of a sweet tooth tbh, but Michael is such a savoury tongue!"
"Sarah is a massive savoury tongue, she won't even chew gum!"