Taking a shit on someone after you fuck them.
Lebron James gave Cleavland the ultimate Cleavland Steamer.
The sexual art of squating over your partner while she performs phillatio on you; while taking a steaming pile of crap on her chest.
Man, that whore I went out with Saturday was so dirty she took a Cincinnati steamer and asked for more!
A really large, horrible smelling defication.
Molly was so drunk she left a nasty Baltimore Steamer on my pillow!
Placing two mounds of snow on a chick's tits, then pissing on them to create a nice stream of steam.
Betty liked the Tahoe Steamer until I missed and pissed in her mouth
"shelly is such a bitch, but she is fine and I would like to give her a bamboo steamer."
A Boston Steamer is 70's term named for a certain 1970's celebrity that liked getting his dick sucked while he took a shit. Hence, a blowjob while your shitting is called a Boston steamer.
After the concert the singer went up to the hotel room and had a groupie give him his favorite: a Boston steamer.
Since their motto is "Tough on dirt, gentle on carpet", the sex act entitled "the stanley steamer" is when you punch a girl in the asshole repeatedly (tough on dirt) while rubbing her pubic bush tenderly (gentle on carpet). Some consider this a contradictory act, but nothing shows your love for a woman (or man?) like a good 'ole stanley steamer.
"She wanted some tough love, so I did the Stanley Steamer"