look up any word, like thot:
 
1.
verb;
to metamorphose from a previously edgy, risque, sharp, funny personality into a safe, weak, lame, often gutless shadow of that former self.

Provenance: the declining quality of American actor and comedian Eddie Murphy's oeuvre throughout the years (see: Daddy Day Care, Meet Dave, Norbit).

Etymology:
Compound word formed from US English 'eddiemurphy' (Eddie Murphy), meaning funny man in purple leather suit
+
metamorphose; verb - to undergo a transformation, a change; origin: Greek (metamórphōsis)

Alternate, although incorrect spelling: eddiemorphose.

Common misspellings: eddiemurphysize (refers to something which is the size of Eddie Murphy).
Example of usage:

You: <insert lame joke here>

Crazy Pete (me): You used to be cool...
You've eddiemurphosed, man!
by Crzy Pete March 07, 2014