The aim of the paper is to propose an alternative model to realist and non-cognitive explanations of the rule-guided use of thick ethical concepts and to examine the implications that may be drawn from this and similar cases for our general understanding of rule-following and the relation between criteria of ap- plication, truth and correctness. It addresses McDowell’s non-cognitivism critique and challenges his defence of the entanglement thesis for thick ethical concepts. Contrary to non-cognitivists, however, I propose to view the relation between the two terms of the entanglement as resulting from the satisfaction of a previ- ously applied moral function. This is what I call a “Three-Fold Model”.