rajoutait

/ʁa.ʒu.tɛ/rajouter
1.
verbIndicative1stImperfectSing3

was adding (something more)

was exaggerating/embellishing (figurative: adding unnecessary detail or emphasis)

Chaque fois qu'il racontait l'histoire, il en rajoutait pour nous impressionner.

Every time he told the story, he would embellish it to impress us.