look up any word, like plopping:
 
1.
A competition amongst the male populace to see who can go the longest without sexual interaction or masturbating during the time of lent. That means no masturbating, handjobs, blowjobs, penetration, or any other form of sexual interactions that could possibly result in orgasms.
"Are you in the ironman challenge?"

"Yeah I've lasted for 5 days already!"
by rsnyper February 11, 2010
 
2.
In a 24 hour time period have have anal sex, vaginal sex, hand job, blow job and and a Boob Fuck.
Man I didn't think I could cum five times, but girl and I Pulled off the Ironman challenge.
by xorvam June 18, 2014