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gen
gen up on (something)
To inform or educate oneself about something; to study up on something. Primarily heard in UK. I'm going to have to gen up on my computer skills before starting this new job.
gen (someone) up on (something)
To inform or educate someone about something; to give someone the required information about something. Primarily heard in UK. The manager genned us up this morning on the status of the company.