oneliner for checking description of packages to be updated

I've been struggling with a bash command that would show me description of packages that are going to be updated with pacman -Syu.
I tried checking updates with checkupdates script, get only packages names, pipe them to pacman -Qi (also with -Ss and -Si) and get only name+desc with grep -E "^(Name|Description)" but using only: checkupdates | cut -d' ' -f1 | xargs pacman -Qi

I always get: error: package '<pkgname>' was not found

I feel that such approach might be completely wrong as such commands cannot be piped to pacman.
If I check everything package desc all the time, after a month I won't need to check descriptions of most frequently updated packages as I will remember them, and that's not the usecase.
Any protips for me?
Or ready to copypaste solution that will fck up my arch instance? ^^