A satire shirt as a gift is a dare. Size is the easy part. The graphic is the part they have to live with at the grocery store. Pick the joke they already tell, not the one you wish they would.
Use the catalog filters — Wear, topic, color, size — then Share the mockup if you need a second opinion. Do not send them to a row of Facebook icons. Send the picture and the line.
Later draft: gift notes, returns, and what to do when they wanted black and you bought ash.