adj.粘上果酱的；轻松的；运气好的
Don't wipe your jammy fingers on the table-cloth. 你别在桌布上擦沾了果酱的手指。
This is one of the jammiest jobs I've ever had. 这是我干过的最轻松的工作。
He wasn't even trying to score,the ball just bounced off the jammy beggar's head into the goal. 他甚至都没想要去得分
