Tea Belly is an ailment that occurs when one has consumed too much tea. The sufferer feels as though a small, but not insignificant lake has formed in his or her gut. When the condition is at its height, it's not uncommon for the sound of swilling liquid to be heard as the victim walks around or engages in any physical activities.
Kat: Wanna another tea pal?
Tamsin: Aye, why not? Sure another couldn't hurt.
...Tea Belly strikes.