Christian Cage/Funny

His and Edge's inclination to make up Buffy-Speak-esque words at random like "stinktitude" and "awesomeness."
His five-second poses with Edge (and later, Kurt Angle) in 2000.

Edge: For the benefit of those with flash photography...

During the time he was allied with Chris Jericho, the Dudleys managed to steal their clothes, luggage, and Jeric--Christian's jar of Ass Cream (which had a hilariously giant label saying, yes, "ASS CREAM".)
- A few months later, Goldust dressed as Santa Claus would give Christian a gift of new and improved ASS CREAM (with 35% more ass!). Christian would insist that it was Jericho's ASS CREAM until Goldust had walked out of the room. Christian would then sneak away with the jar of ASS CREAM like a kid trying to secretly borrow his dad's Playboy magazine.
Towards the end of his WWE run, his character evolved into a Small Name, Big Ego who constantly talked his way into rediculous situations, whilst his "Problem Solver" Tomko began playing the straight man to Christian's wackiness. It. Was. Glorious.

Christian: Tomko, gimme a beat.
Tomko: No.

His promo in TNA, where he responded to claims that he didn't "look like a World champion"... By dressing up as Jeff Jarrett.
His Road to Wrestlemania in Smackdown Vs. RAW 2011. All of it.
Pretty much any segment with Christian's Coalition.
One of Christian's early gimmicks was to throw all-out temper tantrums if things weren't going his way in the ring. Just try watching this without cracking up.
His second WHC title reign came about by taking advantage of the "title changes via DQ" stipulation and getting Randy Orton to kick him in the nuts