To pulsate, quiver or throb.
"Marianne's fingers quobbed against the pen she held over her final exam. None of the questions seemed to make sense and the quobbing pain in her head was not making it any easier."
I'll look into this later guys, my apologies, I'm not fit to be up and around at the moment. Pray for me, I've left you guys my new fifth edition Macquarie dictionary in my will.
May also be written as quab or quop.
Love Tahlia, she with a stupidly low pain threshold.