Wubba Lubba Dub-Dub is Rick's catchphrase (from the hit tv show Rick and Morty), which he recurrently uses in the show, mostly in season one. He uses this phrase every time he's happy or makes a joke. It also means “I am in great pain.”
use it in a act of pure joy like just screaming "Wubba Lubba Dub-Dub", or using its darker side to say “I am in great pain” indirectly
the term "shubba lubba" (or shubba for short)can be used in a wide variety of contexts. basically, shubba lubba can range from "oh fiddlesticks" to "OH ****, ****** ***** *******"
examples of how to use shubba lubba:
"oh shubba lubba i left my phone at home"
"you are such a shubba lubba"
"this movie is shubba lubba"