nerd out

Translations
увлекаться чем-то как ботаник
Someone tends to nerd out over the latest tech gadgets.
Кто-то склонен увлекаться последними техническими гаджетами как ботаник.
Definitions
To become extremely enthusiastic or excited about a particular subject, often one that is technical, academic, or considered 'geeky,' and to discuss it in great detail, sometimes to the point of overwhelming others.
Words
nerd

verb
фанатично увлекаться
out

adverb
до конца