Bulgarian Prime Minister, Boyko Borisov, had proposed to European Union leaders to use Bulgarian language during their work meetings.

Speaking after the European Council summit, Borisov told Bulgarian journalists that he has made the proposal because Bulgarian language very clearly expresses "the yes, the no, and the maybe," while officials in Brussels waste lots of time in debating what is the exact meaning of "maybe" in English.

"My colleagues discussed for over one hour what this meaning was, if it would have any consequences, leading to something we failed to grasp, for example, or something of the sort," the PM told reporters.

Borisov has openly admitted on several occasions that he does not speak foreign languages, English in particular, saying looking back in time, this was one of the things he regretted the most.

He also confessed that he was quite tired during Monday's Nobel Peace Prize ceremony in Oslo.

Pictures have appeared in social media showing Borisov either dozing off or – more likely – being distracted by his cell phone during the ceremony.

"You have to have in mind that I work much and I get very tired," Borisov told reporters when asked to comment on the pictures, noting that jet lags have an adverse effect on one's biorhythm.