Simple Syrup implies the existence of complex syrup

complex syrup is just regular syrup with an imaginary component

Avril Lavigne out here making the syrups all complicated

complex (carbohydrate) syrup: mashed potatoes.

Obligatory serious answer to silly question: there is an alternative called gomme syrup, which uses gum arabic as a thickener. Drinks made with it are supposed to have a richer mouthfeel, but it's a pain in the butt to make and goes bad relatively quickly without preservatives, so I've given up on trying to keep it around. I think that qualifies as a complex syrup.

Tastes awful but it’s got codeine in it

isn't that just a flavored syrup

yes I ordered it using my stupidphone, and to be honest I thought it was pretty whelming

If we're saying complex as in flavor, some maple syrups are multilayered and delicious.

ok its no longer called simple syrup. it will now be known as peasant syrup.

and we are looking down our noses at that disgusting peasant syrup.

complex syrup 5eva.

garlic syrup

\S^{imple} \times \S^{imple} = \C
Calculating syrup residue at infinity

That'd be dextro

Complex syrup would be like... what, coca-cola concentrate?