"That was funny!"
Her prominent eyes swam with tears as she gasped for breath, staring at Ron. Utterly nonplussed, he looked around at the others, who were now laughing at the expression on Ron's face and at the ludicrously prolonged laughter of Luna Lovegood, who was rocking backwards and forwards, clutching her sides.
"Are you taking the mickey?" said Ron, frowning at her.
"Baboon's … backside!" she choked, holding her ribs. -Harry Potter and the Order of the Phoenix
Efforts to darken the shade of human skin, either by natural means (direct exposure to the sun), artifical products (self-tanners), or enhanced exposure to simulated sunlight (tanning beds). Excessive tanning is likely associated with skin cancer.
"Orange alert! Paris should really stop going to the salon to fake and bake - instead of wasting her time tanning, she should work for world peace."