Meaning:

To be heavily armed.

Origin:

This is a pirate phrase originating in Port Royal Jamaica in the 1600's. Having only single shot black power weapons and cutlasses, they would carry many of these weapons at once to keep up the fight.

In addition, they carried a knife in their teeth for maximum arms capability.

Example:

Don't even think about going into Chicago's housing projects unless you are armed to the teeth.

解释：

全副武装

来源：

这个词本来是在十七世纪牙买加皇帝港一带的海盗中流行的。那时，他们有用黑火药只能射击一次的枪和弯刀。为了抢劫，他们不得不带上很多把枪。

当手上不能再拿更多的枪的时候，就用牙齿再咬着一把刀，以增加战斗力。

类同中文：

武装到牙齿