The phrase "huge clumps" describes a large group or cluster of something that is stuck or gathered together.
Sentences with «huge clumps»
Perhaps this occurs because huge clumps of shadow matter in a parallel universe pull on matter in our universe, causing our galaxies to form in mirror - image locations. (discovermagazine.com)
I then had to remove 3/4 of the spinach since my blender wasn't able to fully process it leaving huge clumps. (healthinspirations.net)
So the cake you see here pictured is less than beautiful as it has huge clumps of flour on it. (kimmysbakeshop.com)