Rack Up and Things That Go Bump In The Night

This is best way to avoid racking up credit debt

Today's phrasal verb  is Rack Up, which has three meanings:
1-. to place something onto or into its rack.  

You had better rack the billiard balls up when you finish this game.
  
2-  to accumulate something; to collect or acquire something.

He's racked up a number of convictions for speeding.
We racked up a lot of miles on our last vacation. 
Laura is starting to rack the money up now.
Even though Miller racked up 28 points, the team still lost.
 The company racked up sales of $8 million in its first year of trading.
 
3-To damage something

They racked the car up  in an accident.
He racked up his arm in the football game.

Notes: Separable [optional] transitive verb
Synonyms: chalk up, score, accumulate, make, achieve, collect, notch

"It's just the shadow of the tree branch, it's just the shadow of...aghhhh!"

Today's idiom is Things That Go Bump In The Night, which means:

Frightening but imagined supernatural events.

The earliest known example of the phrase in print is in the 1918 in the  Bulletin of the School Oriental and African Studies:

"To a people ... who ... believe in genii, ghosts, goblins, and those terrific things that 'go bump in the night', protective charms are eagerly sought for."

That usage suggests that the author expected his readers to be familiar with the phrase. Around the same time the phrase was incorporated into a prayer:

From goulies and ghosties and long-leggedy beasties

And things that go bump in the night

Good Lord, deliver us!

This was recorded in The Cornish and West Country Litany, 1926, but it  is quite likely to be much earlier.