●ˌtoss sth ˈback1. ( ˌtoss sth ˈdownless frequent) to drink sth very quickly, especially alcohol很快喝下（尤指酒）；灌下◆She tossed back glass after glass of champagne. 她一杯接一杯地灌香槟酒。◆He tossed back the rest of his drink and walked out. 他把残酒一饮而尽，然后走了出去。OBJdrink, whisky, wine, etc.2.to move sth, especially your head, quickly backwards, especially when you are angry or impatient（表示不高兴或不耐烦）朝后仰起，扬起（头）◆Sam tossed back his head in defiance. 萨姆轻蔑地扬起头。◆She tossed back her hair and smiled. 她向后甩了甩头发，笑了。OBJhair, head[v + adv + n][v + n/pron + adv]