Means "no problem"; contraction of "libenter". Often used in Latin-speaking circles or people who want to sound like they speak Latin.
A: Grātiās tibi agō, amīce. (Thanks for that bruv)
B: Lbtr sed nōlī mē quaerere iterum :) (No problem but don't ask me again)
by MBTW April 25, 2021
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