Wiktionary
backscratch
vb. 1 To scratch one's back 2 (context business slang English) To engage in a reciprocal action
Usage examples of "backscratch".
Max took off his shirt and got his backscratcher out of the kitchen drawer.
Max replaced his backscratcher in the kitchen drawer and got up and yawned.
The cranes lifted off the top halves of their GPEM’s and they scrambled out to an orgy of backscratching.
It was a mutual backscratching operation, but I suppose it did alleviate tensions.