read up 

to become well informed (about) by reading

you need to read up on your Bartlett's

read up by grena February 19, 2010

read up 

Note: Rhymes with "red" rather than "reed."
Pennsylvania Dutch expression meaning to get a place ready for company.

We need to read up the place before your sister comes over.

read up by Lorenzo367 February 4, 2010

read up on it 

What you may literally hafta do if you wanna learn Chinese --- some of their text is arranged in a vertical column that hasta be scanned from the bottom to the top in order to decipher it. Makes ya wonder how the Chinese don't get sore necks from all dat bobble-headed noddin' they do whenever they sit down to read da mornin' paper.

Learning how to make sense of all that fancy vertical signage in Chinatown is fairly simple --- just read up on it.

read up on it by QuacksO May 9, 2018