An excert from here : Slacks implies pants of certain materials which are not part of a suit (jeans are not slacks, and you would not refer to the pair of trousers that came with a suit as slacks.) It is also more common to use slacks to refer to pants worn by women, while men would wear trousers.
1 Bride and family pay for arrangements for church (including huppah if a Jewish wedding ceremony) and reception, plus bouquets and corsages for bridesmaids and flower girls. 2  Groom and family pay for bride's bouquet and going-away corsage, boutonnieres for men, and corsages for mothers and grandmothers.
We paid our pastor (who had done our pre-marital counseling as well, which was free because we are both members of his church) after our ceremony. We gave the money and the responsibility to a groomsman with instructions to give it to the pastor after the wedding when it seemed like a calm moment.