⬆️ To make bigger 🍔 A large portion

supersize

2 3.4

A larger meal size at a fast food restaurant, often for an extra charge

noun
/ˈsuːpərˌsaɪz/

: porción grande

Often the supersize serving is cheaper than buying a single hamburger, a small soft drink, and a salad.
a supersize portion
a supersize meal
a supersize order

Examples

Plus, supersize sodas were a lot cheaper per ounce than small sodas; this is going to be a real boon to soda sellers.

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And supersize servings are a problem.

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In Germany, supersize restaurants are the latest fashion.

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The documentary "Supersize Me" shamed McDonald's into eliminating the uber-sized portion of fries and drinks.

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Many fast food restaurants offer a supersize option for fries at an additional cost.
The supersize meal includes a large burger, large fries, and a big drink.
When you order the supersize soda, you receive twice the amount of the regular size.

How Big

supersize

2 3.4

jumbo

1 1.8

extra large

9 1.0

large

2 1.0

regular

17 3.9

small

∞ 1.0

Surface Forms

supersize singular

supersizes plural

Morphology

supersize = size (transparent) = super + size

The meaning is straightforwardly built from the prefix 'super-' meaning extra or beyond and the base word 'size'.

Etymology

Supersize is made from super- 'above' and size 'how big', so the noun means a portion that is 'bigger than the usual' — like the large fast-food meal that gives you more fries and a bigger drink for an extra charge.