STEAMING - unfortunate meaning in UK slangvivdoyle (35)in #steaming • 7 years ago (edited) STEEMING is great, but STEAMING ain't - at least in UK slang. It used to mean a gang of thugs invading a train or bus and making them hand over their valuables. Daylight robbery! That's why we still need to have guards on our trains. #robbery #gang #thugs