It depends where you get it. If, for instance, you get it on your stomach or arm which is "stretched out", and you lose weight, then yes, it'll look different. Areas like the neck, wrist, ankle, and legs won't change much. It's hard to be specific without knowing how big the tattoo is, where it is, and how much weight is being lost - for a more definitive answer, ask your tattoo artist.
When you gain weight your skin streches and as a result your tattoo will become distorted. To avoid this always choose a part of body where you don't put on weight eaisily.
You gain weight
you get fat
You gain weight.
You gain more weight
You gain a little weight.
you gain weight.
ANSWER: Your body will absorb the fat and you will gain weight.
you gain weight
They may gain weight or feel sick.
Weight gain.
you will gain some weight
You may develop health problems. In addition, you may gain weight or lose weight.