It's actually "tabernacle" which is the fixed locked box, in which, in some churches, the Eucharist is stored. Cursing used in french usually known as cheap language, using it to replace some words so that their sentence can actually make sense.

Internet persona(s) who happens to follow you and you happen to follow them back and maintain communication with and have a mutual liking for eachother whether it be friendship wise, etc. (Mutuals if more than one mutual)

it is another french word that has quit a few meanings it can be use as an adjective/swear/noun
*(examples)*

f*ck, damn straight, holt shit....or jesus's tabbernacle<-- those are the examples