work like a tiger
生龙活虎地工作
three cheers and a tiger
三声欢呼一声吼
How can you catch tiger cubs without entering the tiger's lair?
不入虎穴， 焉得虎子?
buck the tiger 玩纸牌(特指与赌棍玩牌)
tiger sweat 威士忌酒
have a tiger by the tail/ He who rides a tiger is afraid to dismount.骑虎难下
paper tiger 纸老虎
to brag and bully by assuming other people’s authority 狐假虎威
a strategic fortress as if guarded by a tiger and a dragon 虎踞龙盘
a narrow escape 虎口余生
a nation of invaders 虎狼之国
to be passionate about something at the beginning but soon lose theirinterest 虎头蛇尾
Sitting on a hill watching tigersfight 坐山观虎斗 (It means someone takes a sidein a fight until one partyoverwhelms their enemy. )
A goat in tiger's skin 羊质虎皮 (It means someone who appears strong on theoutside but is timid on the inside。)
Three people make a tiger. 三人成虎(The idiom suggests that gossip can be asferocious as a tiger。)
A new-born calf has no fear of the tiger. 初生牛犊不怕虎。
drive a tiger out from the front door while a wolf comes in the back前门拒虎，后门进狼。
like a tiger with wings 如虎添翼(It means someone's might is doubled。)
to lure the tiger form the mountain 调虎离山
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