This is the 8386th most frequent Russian word.
мудрык
The word "мудрык" does not exist in standard Russian; it might be a misspelling or a regional/colloquial term.
Here, 'мудрык' is used as a personal name, similar to a proper noun.
Мудрык советовал нам быть осторожными.
Mudryk advised us to be careful.
In this sentence, 'мудрык' refers to a wise person or sage, used as a noun denoting a characteristic.
Он был настоящим мудрыком, всегда давая прекрасные советы.
He was a true sage, always giving great advice.
'мудрык' is used here in a figurative sense to liken someone's qualities to those of a sage or wise person.