Pizdabol is a Russian slangword for a person who lies, talks untrully shit or simply talks too much shit. Originated from the slang verb pizdit' which means to lie.
A hardo is a person who tries extremely hard at everything. Most times a hardo will try very hard at things that do not require excessive effort. For example, sports practices, gym class, etc.
Wow did you see Jack at practice today? What a hardo!