Touch up: to hit or punch someone in a fight.

When somebody touches you sexually when there not suppose to.

The act of cleaning one's asshole after a day of activity or a possible shart or leaky asshole situtation.

interfered with.

When you already smoked a joint, but you’ve come down just a bit from your high and you just need a few tokes more to get just as high again. A touch up (like a paint job), a refresher toke.

When someone feels another persons body mostly in the crotch and anal area and breasts. Consent must be given otherwise the toucher would be classed a pedo. This can be done one someone of any gender and any age. And any species.

Refering to the NASA moonlanding conspiracy alleging NASA "touched up" footage of the moonlanding in 1969.