Jabber Stabber (A Verb) describes a woman fingering herself until orgasmn in a goofy fashion. This may include fingering herself while whistling the song "Whistle While You Work" or fingering herself while dancing the hora. A man can also "jabberstab" a woman as well but he needs to do something equally goofy at that same time such as voting for George Bush whilst fingering.
"Did you hear LaTanya jabber stabber herself in the park last week?? That bitch straight up fingered herself while Christmas caroling in July. What a goofy bitch!!!"