to figure something out. To put together various pieces of information to reach a logical conclusion based on the information gathered.
From the Childrens TV show where the host would discover what the Dog Blue wanted to do using 3 clues.
Mike:Ya i checked my GFs phone saw joe called her before she went "to the library" and noticed that she smelt of soomeones elses cologne.
Ike: Dude i Blues Clued It, shes cheating on you with joe.