"To catch the drippings" means to collect or capture the liquid that falls or flows down from something.
Sentences with «to catch the drippings»
I set a disposable roast pan under the plant inside to catch any drips from watering. (theinspiredroom.net)
Take them out of their plastic bag and put them in a colander with a larger bowl underneath to catch any dripping water (this is to avoid them from soaking in the water) and to allow air to circulate. (cookingninja.com)
Place a mini marshmallow or two in the bottom of each cone to help catch drips as the ice cream melts. (glutenfreeonashoestring.com)