"sniffing gum" @ "hidu gam"

Im not sure actually how to address this habit...some say 'isap gam"..then i also heard "hidu gam" and in english term??? lagi im not sure ..maybe whoever know about this...can share with me :)

Wonder why they have to take this kind of things???

when i was back to my kampung and jalan2, I found this ....erkkkkkk

yuckk...
unfortunately, I found her just next to that things...haha that's maybe why she is so skinny...joking bah

but...please2 lah...dont take this, its totally wrong!!