'One Dollah' Boat Rides on the Chicago River

I remember Peter, an old colleague from way back when, at Northwestern Memorial Hospital, Institute of Psychiatry, where we worked as Mental Health Workers.  He was a sweet, thoughtful and spirited Chinese man, whose accent we teased now and then.  For example, in reference to these Wendella boat rides on the Chicago River, he'd pronounce more like a slangish "One Dollar" (or One Dollah, as we'd quote him).