This podcast episode explores the significance of idioms in language learning, highlighting their importance for reaching the B2 level of language proficiency. The hosts discuss misinterpretations and misusage of idioms, emphasizing the need to understand their correct usage. They also discuss the benefits of unscripted, real English conversations in language learning and introduce a B2 fluency course that focuses on teaching authentic English. The episode concludes with a special offer for podcast listeners to join the course.