"Gaysome" is a rarely used adjective that describes something that is cheerful, merry or lively. The word is derived from the noun "gay" which refers to homosexuality, but in this context, "gay" means happy or festive. The spelling of "Gaysome" is phonetically transcribed as /ˈɡeɪsəm/, with the stress on the first syllable. The "ay" sound in the first syllable is derived from the long "a" sound, while the second syllable is pronounced as "suhm" with a short "u" sound.
Full of gaiety.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.