You'll toss me on the ground
I'll jump at you just in case
You'll help me off a horse
I'll lift you up instead
You'll mount me on your boat
I'll shout the time for you
You'll wager your house with me
Then take things back illegally
Who/what am I?
Hint 1:
The answer is a single word.
Hint 2:
You can wager other things as well, not just your house. Usually it'll just be money.
Hint 3:
The ground will usually be grass, though I've seen people toss it on gravel many times.
Hint 4:
I won't literally shout the time out loud, just make loudly sure you know it.
Hint 5:
The wager will take place in a specific family of casino/gambling games.
Hint 6:
I'll lift you up a short distance off the ground. You won't fly.
Hint 7:
You'll usually mount me on warships, rather than lowly boats, and you'll take me off while under way.
Hint 8:
This item is tossed on the ground as part of a game.
Hint 9:
The answer is a four-letter word.