^^_16h_35014ng_15_th15

^^_16h_35014ng_15_th15 is an esoteric programming language made by User:Epidemic7. It's commands are based off of what the Challenger crew said before exploding, because.
The stack is 10 high, cause THIS.. IS.. ESOLANG!!

Commands

CMD	DESC
Would you give that back to me?	Begin the program.
All right...	Push a value to the stack, by repeating (All right... once is 0).
Now I see it; I see <char>.	Push character to the stack (it will be treated as a char, even if it looks like a number. So doing Now I see it; I see 5. Now I see it; I see 5. There's ten thousand feet and Mach point five. returns 55, not 10)
Here we go.	Pop a value from the stack, and print.
What for?	Reverse order of the stack.
<letter/num> Minutes downstairs.	Print a character or number.
Right engine helium tank is just a little bit low.	Switch top value of stack with the one below it.
Cabin Pressure is probably going to give us <num>.	Use different stack value for next command, with 0 being the bottom and going up.
There's ten thousand feet and Mach point five.	Add number with number above, else concatenate.
There's Mach one.	Subtracts number with number above.
Feel that mother go.	Divide number with number above.
Houston, Challenger roll program.	Multiply with number above.
Woooohoooo.	Push a random number between 73 and -73 to the stack.
Yep, that's what I've got, too.	Loop next command while value at the top of the stack isn't 0, and decrement it.
Going through nineteen thousand.	Get input and push it to the stack.
Looks like we've got a lotta <letter/num> here today.	If top of the stack is letter/num, do first command, else, do second.
Goes the beanie cap.	Do commands inside the block, for Looks like we've got a lotta wind here today and Yep, that's what I've got, too.
Hmm.	Throw an error, useful for input.
OK.	Comment. (OK. This is a comment)
Uhoh.	End program.

If a program doesn't end with Uhoh. / begin with Would you give that back to me?, it will give the only error:

LOSS OF ALL DATA

Truth Machine

Would you give that back to me?
Going through nineteen thousand.
Looks like we've got a lotta 0 here today. 
Here we go.
Goes the beanie cap.
All right... All right...
What for?
There's Mach one.
Yep, that's what I've got, too.
1 Minutes downstairs.
Goes the beanie cap.

Hello, world!

H minutes downstairs.
e minutes downstairs.
l minutes downstairs.
l minutes downstairs.
o minutes downstairs.
, minutes downstairs.
  minutes downstairs.
w minutes downstairs.
o minutes downstairs.
r minutes downstairs.
l minutes downstairs.
d minutes downstairs.

Combining strings

Going through nineteen thousand.
Going through nineteen thousand.
Cabin Pressure is probably going to give us <num>.
There's ten thousand feet and Mach point five.
Here we go.

Can you nest "Goes the beanie cap"?

Yes! All it is are specialized code blocks, so you can.

Goes the beanie cap.
Goes the beanie cap.
T Minutes downstairs.
Goes the beanie cap.
Goes the beanie cap

This will print "T". Thanks for reading :)