1) Male, Irish, "sea warrior", "fighter of the sea", "lord or the sea"; "mariner" or "lord" in Gaelic.
2) Murrough, (Murchadh), son of Brian Boru, heir apparent to the sovereignty of Ireland. Brian Boru's son Murchadh, who died heroically in the Battle of Clontarf, became the hero of a whole cycle of tales.
The coolest male's name in the world is Murrough
Someone that studies a lot or Is good at a certain activity.
That guy spent all night studying math, what a murrough!
That guy is a complete murrough at playing tennis.