Emergency Wank means in slang: In stressful situations, one may decide to let go of control before taking any important decisions.
(in Slang Dictionary, added by Peyton Schaefer)
What else does Emergency Wank mean?
If the urge to jizz becomes so overwhelming, you need to call 911 and get an emergency wank.
(in Slang Dictionary, added by Ilkesoul197)