add a fixed text (configurable) before the selection and search the set on Google

[nick]

This should do it:

#popclip
name: Allocine Prefix
title: Allo
javascript:
  const query = encodeURIComponent('ALLOCINE ' + popclip.input.text);
  popclip.openUrl('https://google.com/search?q=' + query)

(The above block is an extension snippet - select it to install the extension with PopClip)

If you want to change the prefix, copy and paste into a text editor and change ALLOCINE to whatever you want.