I don’t get it.
I only know it as a bolwing reference, but I’m sure it transfers.
sandbagging in business refers to when in sales you have a quota you are supposed to meet in sales or a quota in prospective contacts. for example, you are supposed to have 5 contacts every week. 1 week you have 8 contacts. you can “sandbag” 3 of those extra contacts & not report them, then when you have a slow week where you only have 2 contacts, you can then report those 3 sandbagged contacts so you show your required 5 for that week & have made your quota. The salesman talking about missing sandbagging means that at the end of the year the slate is clean & he can no longer use last year’s sandbags. He has to start over fresh. So he misses sandbagging. This is a common term in sales, cold calls, telemarketing, etc.
That was an excellent interpretation of what I’d intended here. I was afraid this joke didn’t work because not enough readers would have the sales background.
The character laments having to get back after it, having depleted all of those easy “sandbagged” sales.
It’s never a good sign when a cartoon needs explaining…