Derived from the word driveby or drive-by, a sniff-by or sniffby is the act of checking the levels of freshness/cleanlyness from someone's smell. Example a parent might pick up their baby and do a sniff-by (especially if wearing a onesie or overalls; no easy view at the diaper's fullness). Parent might do a sniff-by on their teenager's armpit, if a shower was needed or how long of a shower was needed. One might do a sniff-by on someone undies (not for fetishes, but to see if they were having an affair). The smell of latex from a condom, semen drippings, or aftershave from recent grooming.
by Jerome0316 May 11, 2019
Get the sniff-bymug. by Treeseph March 12, 2021
Get the Scratch and sniffmug. 
A soundalike for Granny Smith
Person 1: Hey, look, that guy looks like a granny sniff.
Person 2: No, you're a granny sniff you fuu-jee apple.
Person 2: No, you're a granny sniff you fuu-jee apple.
by plagiarismbelike January 29, 2024
Get the Granny sniffmug. When you credit card someone with your hand then make them sniff your hand. Similar to a dirty Sanchez but minus the poo.
by Dirty_KK June 8, 2025
Get the Swipe & sniffmug. by 10 inch May 14, 2006
Get the rumple sniffmug. An insult for someone who is acting stupid or weird, or a name for someone that has wickedly smelling farts or poop
by Poopsniff300 November 18, 2019
Get the Poop sniffmug.