(poner/ser) pega(s): obstáculo, objeción o dificultad (que surge o se pone).
-Me encanta el apartamento, la única pega (que le veo) es que no tiene calefacción — I love the apartment. The only snag/ drawback/ downside is that it doesn't have central heating
→El único pero es que no tiene calefacción
-Con él, todo son pegas — With him, everything is a problem/ He sees the downside to everything
-Siempre está poniendo pegas a todo — He always finds fault with everything / He's always raising objections
-Nos pusieron muchas pegas para renovar el pasaporte — They made it difficult for us to renew the passport / We had to jump through a lot of hoops/ They put a lot of hurdles in our way to get the passport renewed
→Nos pusieron dificultades
→→Nos lo pusieron difícil