clump up
Upper Intermediate (B2) neutral
When things stick together and form a big group or lump instead of staying separate.
"The mascara had clumped up because she forgot to close the tube properly."
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400 car batteries wired together!!
styropyro · 101:52
to clump up and stick together.
How Many Moons Does Earth Have?
Astrum Extra · 1:57
The population of concentric craters actually clump up around certain areas,
Molly Yeh's 5-Star Buttermilk Fried Chicken Is Sooo Juicy 🍗 | Girl Meets Farm | Food Network
Food Network · 3:15
And that allows the coating to clump up so you can get more of it