memento /mi-menˈtō/

1. Something kept or given as a reminder
2. A fit of reverie (obsolete)

memento mori /mōˈrī or moˈrē/ noun (Latin)

1. Remember that you must die
2. Anything (eg a skull) to remind one of mortality

• have someone by the short and curlies
• have someone on toast
• have someone over a barrel
• have someone's back
• have someone's ear
• have someone's guts
• have someone's guts for garters
• have someone's measure
• have someone's number
• have something against
• have something going for one
• have taped
• have the advantage of
• have the ball at one's feet
• have the best of it
• have the black ox tread on one's foot
• have the bulge on someone
• have the cards stacked against
• have the cards stacked in favour of
• have the edge
• have the goods on
• have the heart
• have the hots for
• have the jitters
• have the jump on