"'Batten down the hatches' is often misrendered as 'batter down the hatches'. It's fascinating that changing a single letter could change the literal meaning of a phrase to its opposite, while its meaning as an idiom is still understood. To 'batter' something down is to break it through brute force. A batten is a strip of wood used to reinforce something or cover gaps. Literally, the phrase 'to batten down the hatches' means making sure that any openings on a ship are securely covered when bad weather is expected; figuratively, strengthening one's defences in expectation of difficult times. 'Bated breath' is often misrendered as 'baited breath'..." - Goran Zec

I didn't know that "hear hear" is a shortened form of 'Hear him! Hear him!', it's been 'the regular form of cheering in the House of Commons' since the 17th Century. - Andrej C