Я-54

НА ЯЗЫКЕ укого PrepP Invar the resulting phrase is usu. subj-compl with бытье)

1. ( subj: вопрос, слово etc) some question (word etc) is about to be asked, said by s.o. (who is eager to ask or say it)

X у Y-a на языке = X is on the tip of Y% tongue

Y has X on the tip of his tongue.

На языке у него было множество вопросов, но задать их так и не удалось. Не had many questions on the tip of his tongue, but didn't get to ask them.

2. ( subj: abstr) sth. is continually mentioned, discussed, repeated

X у Y-ов на языке - X keeps popping (cropping) up (in conversation)

Ys keep (are always, are constantly) talking about X Ys talk about X all the time

X у всех на языке - X is on everyone' lips

X is the talk of the town.

Его злоключения у всех на языке - мне уже трое сегодня говорили об этом. His misadventures are the talk of the town-I've heard about them from three people already today.