For those that aren't aware of this tradition, this means she's likely to get married next.

m_rtv said:

For those that aren't aware of this tradition, this means she's likely to get married next.

The tradition apparently comes from the medieval belief that brides themselves were blessed with luck, and people in the middle ages would try to take something from her to improve their luck, like a bit of their dress, an accessory, or even a lock of hair. Tossing some bauble off was for distraction so that the bride and groom could make a deft escape after the ceremony without getting harassed by the crowd on their way out. The tradition evolved over time to favor flowers, and the bride's luck folklore latched on.

A garter is also usually tossed for the same effect. Usually a lady is supposed to catch the flowers, and a guy catches the lacy bit. Some superstitions say the two are linked, so all we need to happen now is for the garter to land on rival girl to seal the deal.

so all we need to happen now is for the garter to land on rival girl to seal the deal.

I hope our guy catches it.