only; nothing but
Expresses that something is the only thing happening or existing, often with a negative nuance of excess or repetition.
ばかり after a verb in dictionary form means that the action is all someone does, often to an excessive or annoying degree. For example, 食べてばかり means 'all you do is eat'. After a noun, it means 'nothing but that thing', like 遊びばかり (nothing but play). This pattern carries a nuance of dissatisfaction or criticism. It is common in spoken Japanese, though the pronunciation may sound like 'bakari' or be shortened to 'bakka' in casual speech (but that is a separate variant you may encounter).