| Idiom | Meaning | Example | 
| a hollow leg | 
space for a lot of drink, room for a lot of beer
 | 
Parl drank six bottles of beer. He must have a hollow leg!
 | 
| a holy pile | 
a lot, very much, tons
 | 
To feed 20 people, you need a holy pile of spaghetti.
 | 
| a hoot | 
a time of laughter, a good time, a riot
 | 
Last night we went to Maude's party. It was a hoot.
 | 
| a horse of a different color | 
a different matter,  a separate issue
 | 
If he wants to buy the land, that's a horse of a different color.
 | 
| a horse's ass [B] | 
a fool, a jerk
 | 
After three drinks he was acting like a horse's ass.
 | 
| a hot hand | 
lucky in card games or at gambling
 | 
Walter's got a hot hand tonight. He's won four games of poker.
 | 
| a hot number | 
a couple (or topic) that everyone is talking about
 | 
Paul and Rita are a hot number now. They're in love.
 | 
| a hot ticket | 
a popular item, a product that people want
 | 
Anything with James Dean's    picture on it is a hot ticket.
 | 
| a hot topic | 
popular topic,  the talk of the town
 | 
Sex is a hot topic. Sex will get their attention.
 | 
| a hotdog | 
one who plays only for the crowd, a show-off
 | 
Eddie was a hotdog - always trying to excite the crowd.
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