The act of being consistently shady and elusive especially soon after beginning a relationship. This may involve shoddy stories and excuses as to why said slipdicker cannot attend to his/her responsibilities or hang out anymore.
Potter: "I haven't seen Seth in awhile.... wonder why? (sarcasm)"
Kevin: "Well, c'mon... I mean its not his fault he's had six music history tests this week. (sarcasm) He's too busy slipdicking."
Schmitz: "I got some bad news. You're kicked out of school. However, you could always just resort to slipdicking around the bureaucracy of it all."