The true boston steamer is a sexual act (fetish). It is when one person craps on another person's face and then sits down and rocks back and forth like a steam roller.
by Dan Herald March 15, 2007
Leaving a steamy pile of shit on top of a glass table while somebody is laying under the table face up.
by alphahooker November 22, 2004
by Golgo13 May 24, 2005
by Eddie semper fi October 07, 2015
by Pseudonym____________ January 12, 2023