Someone is an extremely smooth, charming, or persuasive salesperson, such that he or she could sell something to those who have no need or use for it. I can't believe you were able to sell an extra 200 units to the hospital. You could sell sawdust to a lumber mill!
to lope or walk along heavily and awkwardly. The horses were lumbering along very slowly because they were tired out.They were lumbering along, hoping to get there on time.