Back-formation from taser, from the trademark Taser, by reinterpretation as tase + -er.
Meanings
to operate a taser or electroshock stun gun, by using it against a subject
If the funding for these new tasers is approved, the entire JCPD will have to be re-trained on the tasers, but luckily they won't all have to be tased again. 2014 August 25, “Jefferson City Police seek approval for new tasers”, in KMIZ, archived from the original on 28 Aug 2014:
es electrodisparar (To shock with a stun gun) · bg зашеметявам с електрошок (To shock with a stun gun) · es disparar con paralizadora (To shock with a stun gun) · es disparar con electrocutadora (To shock with a stun gun) · es disparar con taser (téiser) (To shock with a stun gun) · fi käyttää tyrmäysasetta (To shock with a stun gun) · es disparar con inmovilizadora (To shock with a stun gun) · es electrocutar con pistola (To shock with a stun gun) · fr taser (To shock with a stun gun)