Green’s Dictionary of Slang

a thin strip of female pubic hair left on an otherwise shaved pubis.

2014		http://www1.asstr.org/~lschmidt 🌐 Some big-titted gal with a mostly shaved snatch, just a ‘landing strip’ of short brown fur.
2014		‘Chelsea G. Summers’ in Vulture.com 16 Dec. 🌐 A London gallery removed Leena McCall’s Portrait of Ms Ruby May because it was ‘pornographic’ [...] The crime? A shadowed landing strip of pubic hair in the subject’s unzipped pants.
2018		‘Aidan Truhen’ Price You Pay 73: [T]hat perfect landing strip for the pudendum that is absolutely Denominazione di Origine Controllata.
2019		D. Winslow Border [ebook] ‘Check this out,’ Cirello says, pointing out a brown rectangle amid the green. ‘Looks like a landing strip to me.’ ‘Speaking of landing strips—’ ‘Focus,’ Cirello says.