xicopini.

Headword: 
xicopini.
Principal English Translation: 

to make jokes (see Karttunen)

Orthographic Variants: 
xīcopīni
IPAspelling: 
ʃiːkopiːni
Frances Karttunen: 

XĪCOPĪN(I) to make jokes / se zafa, se chispa, (T) [(1)Tp.246]. See XĪCOPĪN(A).
Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 324.