From scratch + back. <span class="searchmatch">scratchback</span> (plural <span class="searchmatch">scratchbacks</span>) (UK, dated) A toy which imitates the sound of tearing cloth, used by drawing it across the back...
<span class="searchmatch">scratchbacks</span> plural of <span class="searchmatch">scratchback</span>...
sawback say it louder for the ones in the back scale back scaleback <span class="searchmatch">scratchback</span> screwback screw back scrollback seatback, seat back send back setback...
logrolling, or backscratching, the effect is the same: "you support me, I'll support you." engage in reciprocal action kickback logrolling <span class="searchmatch">scratchback</span>...