Build up and Pumped up

Build up verb - To become greater in extent, volume, amount, or number.

Pumped up and build up are semantically related In some cases you can replace term "Pumped up" with "Build up", this phrasal verbs are similar.

Pumped up adjective - Tense with excitement and enthusiasm as from a rush of adrenaline.

Build up and pumped up are semantically related in blow up topic. Sometimes you can use "Build up" instead a verb "Pumped up", if it concerns topics such as activate, energize.