#l4

What does "l4" mean?
lp610_4, lp570_4, LP610_4, lp560_4, Lp700_4, Lp750_4, Lp610_4, lp700_4, lp570_4sl, LP700_4, lp750_4, LP570_4, lupomorte_407, LP560_4, lp770_4, lp750_4sv, lamborghiniaventadorlp700_4roadster, lamborghinilp610_4, lamborghinihuracanspyderlp610_4, later_4, lamborghiniaventadorlp700_4, lp670_4, LP750_4, lp640_4, lp610_4spyder, lp540_4, laurag_43, LIGNE_4, LCK_41, lip_48

l4-l 132288938 l4-f 2550956 l4-p 305862 l4-s 98830 l4-1 61425 l4-k 39499 l4-t 32717 l4-c 26844 l4-r 28151 l4-i 21259 l4-d 16734 l4-like 1001749 l4-m 9430 l4-ls 94526 l4-l👍 7101 l4-fl 41897 l4-lb 29929 l4-ll 34698 l4-lkpop 140185 l4-d2 16956 l4-pp 18943 l4-f4f 35608 l4-likes 83179 l4-2 1824 l4-lers 78304 l4-lalways 90086 l4-follow 88999 l4-l4- 5802 l4-followers 39188 l4-lback 22293 l4-lf4f 14185 l4-likeback 9148 l4-lbox 9236 l4-ol 2532 l4-likeforlike 12999 l4-k3 3066 l4-l😍 3881 l4-ltflersharrystyles2012instacollage 336 l4-llike 3437 l4-yc 1257 l4-jc 973 l4-llike4like 3464 l4-lkpopacc 1972 l4-bagavail 1651 l4-66hehs 2174 l4-fk 712 l4-likes4likes 3714 l4-il 601 l4-lnn 872 l4-df 595 l4-as 593