notadictionary.com
Quand tu t'assois chez le coiffeur dans ton peignoir blanc après le shampoing et que tu te demandes si tu as toujours été aussi moche
→ “When you sit down at the hairdresser's in your white robe after the shampoo and wonder if you've always been this ugly”
Quand — when
tu — you
t'assois — sit (down) → reflexive verb 's'asseoir', present tense, 2nd-person singular; here it implies settling into a chair
chez — at / to the place of
le coiffeur — the hairdresser
dans — in / inside
ton — your
peignoir — bathrobe
blanc — white
après — after
le shampoing — the shampoo
et — and
que — that
tu — you
te — yourself (reflexive pronoun)
demandes — wonder / ask yourself → present tense, 2nd-person singular of 'demander'
si — if / whether
tu — you
as — have → present tense, 2nd-person singular of 'avoir'; used here with past participle to form passé composé
toujours — always
été — been → past participle of 'être'; agrees with subject 'tu' but remains unchanged here due to auxiliary 'avoir'
aussi — so / as
moche — ugly → informal, colloquial adjective for unattractive appearance