The burning sensation around your butthole when you take an urgent dump (or five) the nextmorning following a night of way too much tequila and lots of spicy salsa on yer appetizers.
From the bathroom: "Aaarrrggggggggg - ooowwwwwww!!!"
Friend #1: "What in the name of all that is holy was THAT??!"
Friend #2: "Rinaldo did a few too many shots of tequila and ate a few too many street tacos last night: Ring of Fire!"
Friend #1: "Ouch!"
Friend #2: "Amen."
A large metal, aluminum, or wooden shaped rod used in the jewelry industry to measure the size of rings and to jam in the pussy of horny female sales associates.
Also can be broken down to be pronounced as "Man Drill" instead of Mandrel.
(Bob) Hey Barbara, can you pass me that ring mandrel so I can see what size this customers' ring is?
(Barbara) Sure can, as soon as I'm done pleasuring myself with it!