Using 'snaffle' suggests doing something a bit sneaky or cheeky, often playfully. She snaffled the front-row tickets while everyone was busy talking.
Pro Tip 2/3
Not Negative Theft
Although similar to stealing, 'snaffle' is less harsh and often seen in a lighter context. Tom snaffled a donut from the box, thinking no one would notice.
Pro Tip 3/3
Rarely Serious
'Snaffle' is rarely used for serious or large-scale taking, it's more playful or trivial. The dog snaffled a sausage from the picnic when nobody was looking.