Terms for subject Contextual meaning containing be a

English	Russian
as a general rule, my opinion is that military men must be kept out of it. It's folly to take their advice	я вообще считаю, что военных надо держать в стороне. Глупо с ними советоваться (Эренбург)
be a paper-pusher	протирать штаны (за бумажной работой: he has been a paper-pusher all his life – всю свою жизнь он протирал штаны в конторе)
be a toddler	начинать ходить (Their parents had been toddlers together – Их родители вместе начинали/учились ходить. neamm)
be blown up by a land mine	подорваться на мине (We have lost eight servicemen. One was killed during fighting with rebels while another seven were killed when their vehicle was blown up by a land mine 4uzhoj)
it might be a blessing in disguise	что ни делается, всё к лучшему (Don't get so upset you didn't get the job. It might be a blessing in disguise. Рина Грант)