birthday bumps 

a historical birthday tradition where friends of the birthdayer lift them by their arms and legs and swing for the amount of years they are turning.

Bob: Hey jim heard its patti birthday celebrations later, we should give her the birthday bumps!
Jim: right on man - thats the only way to celebrate turning 47!!!

birthday bumps by danesworld____ March 9, 2018

Birthday bumps 

Hitting someone hard on the arm for the amount of years they are( and an extra one for good luck( extra hard))

I hear it toms birthday, let's give him birthday bumps

Birthday bumps by @welshdragon83 June 23, 2018