What does temp means

Question

Exp

Answer 1

where did you see it?
it perhaps was a temporary variable

Answer 2

It is often a variable used to swap value between 2 variables.

If a = 5 and b = 8, how would you swap their values?

You could try:
a = b
b = a
But then those variables would both equal 8.

You could try:
b = 5
a = 8
But it is not the searched solution.

You can solve this using temp variable.
temp = a
a = b
b = temp
Now a = 8 and b = 5

There are some tricks, which make it unecessary to use temp.
In Python you could just solve it like this:
a, b = b, a
Now a = 8, b = 5

But here is the trick:
a = b + a
b = a - b
a = a - b
Now a = 8, b = 5