When a city absolutely unloads an obscene, relentless, no-consent avalanche of traffic signs straight into your field of vision, leaving you overwhelmed and disoriented. By the time it's over, your windshield has seen more action than you ever wanted. Most famously experienced in Prague, where the traffic engineers apparently believe there's no such thing as too many signs.
Five minutes in Prague and I'd been absolutely traffic sign bukkake'd. Speed limits, parking zones, tram warnings, bike lanes… they just kept coming.
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!