types:
chewer
someone who chews (especially someone who chews tobacco)
drinker
a person who drinks liquids
eater,
feeder
someone who consumes food for nourishment
bar fly
a drinker who frequents bars
chain-smoker
a heavy smoker (usually of cigarettes) who lights one off of another
devourer
someone who eats greedily or voraciously
diner
a person eating a meal (especially in a restaurant)
drunk
someone who is intoxicated
dunker
an eater who dips food into a liquid before eating it
gobbler
a hasty eater who swallows large mouthfuls
guest
a customer of a hotel or restaurant etc.
guzzler
someone who drinks heavily (especially alcoholic beverages)
luncher
someone who is eating lunch
moderationist
a moderate drinker (as opposed to a total abstainer)
mouth
a person conceived as a consumer of food
muncher
a chewer who makes a munching noise
nosher,
snacker
someone who eats lightly or eats snacks between meals
omnivore
a person who eats all kinds of foods
policyholder
a person who holds an insurance policy; usually, the client in whose name an insurance policy is written
quaffer
a person who drinks heartily
shopper
someone who visits stores in search of articles to buy
reader,
subscriber
someone who pays for and receives a steady publication (such as a monthly magazine) or service (such as cable TV or an app)
sucker
a drinker who sucks (as at a nipple or through a straw)
taker
one who accepts an offer
vegetarian
eater of fruits and grains and nuts; someone who eats no meat or fish or (often) any animal products
warrantee
a customer to whom a warrant or guarantee is given
waster,
wastrel
someone who dissipates resources self-indulgently