2gyún lüng gyún laa 指孿指蛙 — [to sneak in and out of a hole] to search high and low for a place (ylyljh 553, 134).
3gyún sāan lüng seuih douh 指山隆隧道 — [to go through the mountain hole tunnel] a tunnel, especially Lion Rock tunnel in Hong Kong (gyún sāan lüng 指山隆 is also the name of a children's game).