Vocabulary
salement
dirty, dirtily; Intensitive adverb : very, really. (in a bad way) "J'ai été salement amoché par une crise néphrétique" (André Gide, Letters) : "I've been really banged-up by renal crisis"; Related to the precedent (antiphrasis) : very, really (in a good way) " Faut acheter des sardines … C'est salement bon !" (Louis Pergaud, La Guerre des boutons) : "We got to buy sardines … It's really good !"
Adverb
verbe léger
light verb (verb without lexical meaning, accompanied by a noun signifying an action or a state. For example, faire in faire une inspection is a light verb, and one can simply say inspecter)
Noun
une fois
once, as soon as; With que, introducing a full clause in the perfect aspect.; Introducing a reduced passive-voice clause consisting only of a subject plus a past participle phrase.; Introducing a reduced perfect-aspect clause consisting only of a subject plus a past participle phrase (provided that the verb is one that forms the perfect aspect with être).; Introducing a reduced clause in either of the above senses, consisting only a past participle phrase, its subject being implied.
Conjunction
une fois n'est pas coutume
doing it once is all right, but let it not turn into a habit; it's ok this time, but let's not make a habit of it
Phrase