Jane: Yeah did you see the way Abby was talking about Jacob?
Bill: Yeah, and then she was totally shecluding Jacob today.
Jane: I don't understand, does Abby like him or not?
Putting a blockage on something; common phrases are:
securing YOUR lid: chastity, virginity, caution tape afront your 'woman hole'
securing HIS lid: use of a condom or other male birth control device
securing THE lid: the end of a long day; typically one that provokes fatigue and exhaustion
Word on the street is that hot blonde girl's been securing the lid