consume, eat, drink, smoke, receive (a blow)
喫 centers on taking something into the body or self: consuming food or drink, smoking, or receiving an impact such as a blow.
喫 combines 口 (mouth) with 契, which likely contributes the sound and may relate to the idea of cutting or engraving, but the exact historical connection to consuming is uncertain.
A mouth 口 beside 契, which looks like a person with a tool cutting into something. Imagine a mouth consuming food, drink, or smoke, or a boxer's mouth receiving a blow.
For キツ, imagine a kitsune (fox) consuming a meal: kitsune -> キツ, and the fox's mouth is busy eating.
smoking (tobacco)
coffee shop; tearoom; coffee lounge; coffeehouse; cafe
having one's fill (of food or drink); eating (drinking) to one's heart's content
tea drinking
to eat; to drink; to smoke; to take
manga cafe; coffee shop with a manga library (usu. has Internet facilities and charges by the hour)
urgent; pressing; exigent
manga cafe; coffee shop with a manga library (usu. has Internet facilities and charges by the hour)
jazz cafe
maid cafe; cafe with waitresses dressed in cute maid costumes
passive smoking; second-hand smoking
to eat; to drink; to smoke
to smoke (tobacco)
sea gauge; draft; draught
waterline (ship)
smoking corner
smoking room
smoking implement; smoking device
smoking room; smoking compartment
smoking seat (in a restaurant, train, etc.); smoking section