A portmanteau of the words sexy and ethnicity used to describe an undefinable trait of women of exotic origins and exotic genetic mixes who define conventional explanation. Who possess a je ne sais quoi. Often measured in terms of spice as compared to the local cuisine.
That girl's part thai and lataina, wow, she has that sexnicity. i.e. PadmaLakshmi
The sexual tensionin the room had surpassed atmospheric pressure and was making everyone uncomfortable. There was no hope of relief, however, for this was the world's longest Sexican standoff.