Seriously people… this game can’t end on the word JOCKSTRAP… 
jocularity
jumbo
Jonnie
jolly
Japan
Joaquin
jeer
jasmine
jaunty
juicers
juvenile
Jewess
jive
jowls
I think we got off track a bit. Playing off “Jewess”:
Jaxon
joyfully
jazzing
harmonious
Odd. In my dictionary, K comes after J
Karma