Scrape together
Definition 1 of 1
Pro Tip 1/3Effort implied
Indicates putting in significant effort or struggle to obtain something. 
She had to scrape together every bit of her willpower to finish the marathon.
Pro Tip 2/3Limited resources
Often used when there's a challenge due to limited resources or options. 
The students scraped together their remaining supplies to complete the project.
Pro Tip 3/3Time sensitivity
This phrase may imply a sense of urgency or a tight timeframe. 
We need to scrape together a presentation by tomorrow morning.