З194
ПОПАДАТЬ(СЯ)/ПОПАСТЬ(СЯ) НА ЗУБОК (НА ЗУБ less common) (к) кому
collVPsubj:
human to become the object of
s.o. 's mockery, biting criticism, gossip
X попал к Y-y на зубок - X became the butt of Y's ridicule (criticism, sarcasm etc)
X became (was) the target of Y4s tongueY got his teeth into X.