To amble without real aim, yet in a friendly and harmless manner. It's not required to acheive nothing, though it is a frequent side effect. Bimbling can be made a little more business like with a slight hunch of the shoulders.
Tron and Enid whiled away many a Sunday afternoon on a pleasant bimble round the shops.
Describes the state of being so physically overburdened that one is unable to perform other physical actions either safely or effectively. Usually occurs when finding oneself needing a third hand.