2010, Mike Sands, Make Your Own E-Liquid, page 15:
Once you know you have a dry atomizer, add three drops of your E-liquid through the drip tip.
2015 June 6, Amy Trent, “Concerns cloud e-cigarette craze”, in Lynchburg News and Advance:
Bottles of glycerin, propylene glycol, nicotine and flavorings line the shelves behind Setzer while mod boxes, atomizers and drip tips rest in the display case in front of him.
2017 August 20, Simon Waters, “How I quit smoking and is vaping something you should try?”, in New Zealand Herald:
And you can bling them up with accessories, covers, different tanks, hand-crafted drip tips and so on.