Regarding the first part of your query, "antsya_ancya_no_war," it appears to be a username or social media handle (such as from TikTok or Telegram) rather than part of the song's lyrics.
"Give me a paper and a pen so I can write about my life of sin A couple bottles of gin, in case I don't get in" antsya_ancya_no_war
The song is a tribute to fallen friends and a reflection on mortality, released in 1996 on the album All Eyez On Me . antsya_ancya_no_war