This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

v. Third-person singular simple present indicative form of clump.

n. Plural form of clump.

n. A game in which questions are asked for the purpose of enabling the questioners to discover a word or thing previously selected by two persons who answer the questions; so called because the players take sides in two "clumps" or groups.

n. A game in which questions are asked for the purpose of enabling the questioners to discover a word or thing previously selected by two persons who answer the questions; -- so called because the players take sides in two “clumps” or groups, the “clump” which guesses the word winning the game.

n. Variant forms of clumse.

n. A game of questions and answers.

"I can see black oil slicks floating in clumps on and below the surface."

clump   

bumps    dumps    jumps    lumps    mumps    pumps    slumps    stumps    thumps    trumps