When your boyfriend comes back to voltron after being on a space whale for two years, in the quantum abyss, with his galra mom and raising a cosmic time wolf then you can use the term Hey Everybody Keith's Back.
'I don't have time for this Lance'
'Hey Everybody Keith's Back!'
One of the many bastard children of The Most Interesting Man In The World. Often spotted with a case of Keystone Light tucked under his arm. Always smooth.
Keith: My name? Is Keith Stone.
Totally hot chick: Keith Stone? You're so smooth...
Keith: Always.