A sex position described as having a candle too close to the bed and someones hair catches fire while the other person cums, then laughs at their partners expense.
My girl and I were having sex last night and did the flaming Elmo. When I finished she said,"that tickles".
Satan. Tickle Me Elmo is a demon from the deepest pits of hell masquerading as an innocent children's toy. This is shown by it's insane fits of maniacal laughter whenever touched at all. If you find yourself in the same room as a Tickle Me Elmo, you should avoid all eye contact and should NEVER touch it. The best way to dispatch this demon to the fire from whence it came is to set it on fire, record it, and post the video on YouTube.
After having rough sex, the dude pops his red balls (resembling elmo) into the chick's ass, thus making it dirty. Afterwards, the chick can either lick it off, like a lollipop, or just enjoy the ball to anus pleasure. The definition is quite flexible.
Example 1 (balls into anus):
Dude1: Dude, she's so hot.
Dude2: I'm gonna enjoy poppin the dirty elmo.
Example 2 (lollipop licking the dirty elmo):
Dude1: Dude, I hear she's quite rough in bed.
Dude2: I hope she enjoys poppin the dirty elmo.