Can you have multiple instances under one variable?

So I mean that with one local '...' there are multiple objects. I am doing a collision script so could you do:

local gethit = c.Part1 , c.Part2 

--or something like

local gethit = c.Part1,Part1

--or

local gethit = c.Part1 or c.Part2

So that way when either of them get hit, it calls the function from one variable for all of them.