Waxxxinate or Waxinate or Waxxinate (variant spelling of “vaccinate”)

“Waxinate” or “waxxinate” or waxxxinate” are variant spellings of “vaccinate,” sometimes for jocular effect and sometimes to get around computer algorithms. The spellings became popular in 2020 with the COVID-19 (coronavirus) pandemic, but were used earlier.
 
“Waccine” (wack + vaccine), “waccinate,” “waccination,” “waxxine” and “waxination” or “waxxination” are similar terms.

Wikipedia: COVID-19 pandemic
The COVID-19 pandemic, also known as the coronavirus pandemic, is an ongoing pandemic of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), first identified in December 2019 in Wuhan, China. The outbreak was declared a Public Health Emergency of International Concern in January 2020 and a pandemic in March.