The present-tense act of looking something up on Wikipedia, or as the wordplay goes, researching something on Wikipedia.
Pronounced "Wiki - pee - searching".
Guy #1: Bro, is Batman dead? Who killed him?
Guy #2: Hold on, let me do some Wikipesearch.
Guy #1: Okay.
Guy #2: I have finished Wikipesearching. Darkseid fried him with laser eyes or something in Final Crisis.
Guy #1: Bawww!