Sniffing

[Sarah]

A rapid inspiratory act, in which the mouth is kept shut andthe air drawn in through the nose.

[Sarah]

1)To violently smell, deeply inhale

2)To snort

[Rihanna]

Sucking, with ones nose, but not like as in Timmy, you suck, more as in straws suck. Cannot be done [underwater] unless you happen to be a water [shrew] or star-nosed [mole].

[exinilu]

The action of drawing in air audibly through the nose.