under one's belt

under one's belt

Experienced or achieved, as in Once a medical student has anatomy under her belt, she'll have much less to memorize. This metaphoric expression likens food that has been consumed to an experience that has been digested. [Colloquial; first half of 1800s]
See also: belt
References in periodicals archive ?
99) teaches how to get a solid foundation of T-SQL concepts under one's belt for writing better queries, showing how to master the basics behind such queries and programming requirements associated with them.