[ cheer-er-uhp-er ]
/ ˌtʃɪər ərˈʌp ər /
a person or thing that cheers a person up: A good joke is the best cheerer-upper.
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Origin of cheerer-upper
cheer up + -er1, joined pleonastically to both v. and particle
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019