French
French speaking countries
bouche-trou *
* hole-filler
Word used here and there by Young People
n. • It describes a person used as a replacement of another person in a group.
"Elle a parfois l'impression d'être le bouche-trou de la bande ; elle est invitée à manger ou faire la fête avec eux seulement quand ça les arrangent."
"She sometimes has the feeling of being the group hole-filler; she's invited to eat or party with them only when it suits them."
Added September 2020 by do
11 out of 14 French speakers have heard this