the act of motor boating your anus on a females breast and letting out subtle, noiseless farts.
"hey Johnathan, i bet you wont ask that lady is you could steam-boat her."
"whats steam-boating"
"you know farting on her tits"
"oh, well here i go"
Abnormal condition of being blue
Iâve been outside too long; I may have smurfentitis