This word is acceptable for play in the UK dictionary that is being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. a jar for holding jellies or preserves; a jamjar.

n. a jar for holding jellies or preserves

"In spite of looking like a plum duff on legs, Blowitz had an extraordinary gift of attracting the best of 'em like flies to a jampot."

jar   

jamjar