Why do people say fast asleep?

Question

I'm anything but fast. I just lie there.

Answer 1

"fast" is often used like the word "very" or "deep" in English.

Not too hard to understand.

Answer 2

i guess cuz time passes by fast when ur asleep.
or cus u dont eat ne thing while u sleep. (fast also means to sort of like starve urself...i think...)
or pehaps u r nice and secure when ur asleep. ur not moving around. u just lie there right? then u r "fastened" to ur bed or where ever else ur lieing down in.....

Answer 3

The word " fast " has different definitions.

Fasting also means starving.

So when you sleep for hours you're not eating and basically you are actually starving yourself while asleep.

Normally, people tend to eat when they are awake and you can't eat properly while asleep.

So, you sleep for hours and not eating anything.

" fast " asleep.

Answer 4

people say "fast asleep" because when people are sleeping and when there is a loud sound they won't wake up

Answer 5

Sounds better than slow asleep.....