ADJ on n
The 'short' and 'heavy' group
These adjectives indicate that there is a lot or a little of something in a particular thing, person, or situation.
big heavy light long low short
Dr V was obviously not big on tact.
The picture showed a tubby, beige, balding man, short on muscles and heavy on everything else.
The disgraceful article which appeared on page one, was very heavy on rumour and very light on fact.