| Idiom | Meaning | Example | 
| haywire | 
(See go haywire)
 | 
 | 
| hazard a guess | 
guess at the answer, take a a shot in the dark
 | 
How many beans are in the jar? Do you want to hazard a guess?
 | 
| he who hesitates is lost | 
if you hesitate you may not get another chance
 | 
If you want to marry Ko, ask her. He who hesitates is lost.
 | 
| head (headbanger) | 
a person who uses drugs, junkie
 | 
That school has no heads. Not one student is using drugs.
 | 
| head | 
(See skids)
 | 
 | 
| head and shoulders | 
superior, better,  a cut above
 | 
Her work is superior - head and shoulders above the others.
 | 
| head down there | 
go there, travel south, head up there
 | 
Have you been to Chile? I'm going to head down there for the winter. 
 | 
| head honcho | 
boss, foreman, manager
 | 
Who's the head honcho here? I have a package for him - or her.
 | 
| head in the clouds | 
dreaming, wondering, not practical
 | 
Shelly is a daydreamer. She's got her head in the clouds.
 | 
| head in the sand | 
unable to see, unwilling to look
 | 
The minister hasn't noticed their poverty. His head is in the sand.
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