Comes from the Quechua language, which still influences some Sur American countries (Bolivia, Perú, Chile, etc.)
It may also be exchangeable with ''wawa'' (singular) o wawas (plural).
When you don't have time for the full on internet porn, box of tissues masturbation session. Wankitas often occur in last few minutes of a morning shower or on the toilet with just seconds to finish off before getting busted.
Jenny called and said she was a coupleblocks away so I only had time for a wankita in the dunny.