a piece of paper that has been chewed and shaped into a ball for use as a missile
(用嘴嚼成的用作抛射物的)纸团。
【棒球】 唾沫球(指投手用唾沫或汗液弄湿球,投出后球在空中作不规则运动,属犯规动作)。
〈美,非正式〉 不假思索地提(建议)
-
I'm just spitballing a few ideas .我只是随便提几个想法罢了。