guswāganya (-swāganye)     v    to joke, say things to make others laugh, to be kidding
joke    gufyina, kujajura, guswāganya, kujāndajānda, gufyinata
(with lots of words) kurimbūra
En-En dictionary 
laugh    gutwēnga, gusekaseka
(at) kwīshinyira, gushinyira, gutwēnga
(at secretly) gutwēngera mwijigo
(for nothing) gushinyagura
(to make others ~) guswāganya, gutwēnza, gutwēngēsha
(one who makes others laugh) akagūgu
En-En dictionary 
say    kubara, kugira, gukerutsa, kurānga, kuvuga, kubarira, –ti
(no infinitive)
(to say no) guhakana
(he says) ngo, ati
(nothing) kunuma
(not ~ directly) gukingitiranya
(mean things to provoke another) kwīyandagaza
(things to make others laugh) guswāganya
(say!) erega
(you don't say!) itu
(slanderous talk) kuvōvōta
(one who says things he shouldn't when with others) ikirandamuke
(one who says inappropriate things) igihururu
En-En dictionary