"Pitre" is one of the French words for clown. There are others with slightly different meanings, like:
Bouffon- clown, jester, pantaloon, zany, buffoon
Paillasse- clown, pallet, paillasse
Paysan- clown, peasant, farmer, rustic, bumpkin, churl
Plaisantin- clown, joker, wag, jester
Imbecile- clown, fool, imbecile, idiot, silly, moron
Fantaisiste- clown, joker
If you mean it as a verb, like "to clown around", use this faire le clown.
(If you need more info, try Google Translate or another site like it.)
My name translated from English to french is Allen
Vendredi in French is "Friday" in English.
"Where?" in English is Où? in French.
"How?" in English is Comment? in French.
"Out" in English is dehors in French.
Il in French is "he" in English.
Comment? in French is "How?" in English.
Quoi? in French is "What?" in English.
"Can I ...?" in English is Puis-je ...? in French.
Faire in French is "to do" in English.
Où? in French is "Where?" in English.
Avec in French with "with" in English.