bummer
mummer bummer drummer
dumber, hummer, summer, rummer
disaster, misfortune, disappointment
Bummer, drink some beer
No
Summer weather that rhymes with bought is HOT.
slumber
The word "Bummer" used to refer to the unpleasant after effect of taking narcotics. However the word has evolved over time to mean an unpleasant, frustrating or disappointing event. Bummer became popular in the 1990's.
bummer, drummer
Number
There are no numbers that rhyme with the word country.