Straight: Angie orders this new and exciting coffee drink. The entire coffeehouse goes quiet, and the barista asks her, "Are you sure?" and makes the drink for her. Angie drinks it, and Intoxication Ensues.
Exaggerated: The drink is put into a small espresso cup, but has the Caffeine Bullet Time effect of 10 espressos.
Downplayed: The coffeehouse menu features a drink called the "Red Eye" which is a cup of coffee with a shot of espresso. A drawing of a bloodshot eye decorates the menu next to the drink's name.
Something has been added to the coffee to kick up the caffeine
The coffee is made from Super Beans that have been specially bred to produce 10x the normal amount of caffeine.
Coffin Varnish/ Student Coffee (coffee brewed using cola, energy drinks, or stale coffee)
Angie goes to a bar and orders herself not coffee, but a Gargle Blaster of some sort.
Angie orders decaf or a smoothie instead, because consuming caffeine is against her religion, she's pregnant, she's too sensitive to caffeine, etc.
Subverted: Angie drinks the coffee drink and bugs out for one moment, but feels just fine the next. Maybe a little more energized, but not bouncing off the walls (literally or figuratively).