welp, this is it (phrase)

1). showing someone else something you have previously referred to

2). acceptance that you are near an end of something you have lost control over

3). A phrase used before stating something that will happen when something else happens

1). welp, this is it (phrase), the rock you so desperately wanted to see
2). welp, this is it (phrase); we are going to die huh?
3). welp, this is it (phrase), just one more enemy before the final boss